Ethan is a college student. He is a model student who always does his assignments on time and has a high GPA score. He lives with her sister, Celia Strongheart, in a small house in Ironshade Town. Ethan's father died a year ago in an accident, while his mother, who had remarried, moved to another city, leaving them behind.
Later, he found out that his father was a demon hunter who was killed by demons. Ethan and his younger sister experienced financial difficulties for a year after his father's death because he only relied on money sent by his mother and from working part-time as a private tutor. Finally, Ethan decided to find a permanent job which led to his death and came back to life as an incubus named Damian Lucio.

Body Description:
He's about medium height with a friendly face and beige skin colour. His hair is slightly curly brown and a little messy. His brown eyes have a gentle gaze. His body was slightly thin compared to men of his age and without muscles which make him feel insecure. He usually wears a simple t-shirt with a sweater to cover his skinny body, jeans and a brown sling bag almost every day.

Damian is a handsome incubus who can make every woman fall in love with him in just one glance. He has a wild personality, good at seducing women, brave and confident. Influenced by his race as a demon, he is a dominant who dislikes anyone who tries to take or disturb his partners, family or friends, as well as a manipulator who can make his partners surrender themselves without any violence.

Body Description:
Damian is taller than Ethan, has sharp brown eyes (red if he is in his demonic form), good posture, and athletically tall. His face is more handsome than a supermodel. His hair dark blue hair is half messy with bangs that formed a comma on one side while the rest is neatly combed back. He usually wears a neat suit because of his profession as a prostitute.

Ethan's younger sister. Celia was a cheerful girl, but after their father's death, her attitude towards Ethan turned cold. Ethan thought she blamed him for their father's death but Celia finally admits she did it to stay away because she had feelings for him. Celia is very fond of cooking and is diligent in keeping the house clean, even she decided to continue it to culinary school, Alumore College.

Body Description:
She's a little shorter than Ethan, has a cute face, brown eye colour with energetic gaze, beige skin colour and C-cup breast size. Her straight brown hair is covering to the middle of her back with bangs. She has a slender waist, no muscle tone, toned hands, and small feet. She usually wears a simple t-shirt with a skirt that usually in pink and wears no makeup except her favourite pink parfait lipstick.

Lilieth (DLS) Before turning into a Succubus, Lilieth was a princess from the kingdom of Euthenia named Eve. Her husband, the crown prince of Aeros, Reyn Whitelight, betrayed her on her wedding day and killed her entire family, even sacrificing her to the strongest demon lord, Damon Arcano Malignus. But in the end, Damon offered her a contract to become his succubus and gave her power for revenge. She accepted his offer since she had no choice. Although their relationship was originally based on a contract, they eventually fell in love with each other. Lilieth is the name that Damon gave her after she turned into a succubus.

Lilieth is a mysterious royal succubus that helps Ethan from the rat demons and turns him into an incubus. She's the one who told Ethan about the crack between the dark dimension and the human world and also taught him how to control his alter ego. She was the admin of Ethan's The Incubus System before she opened his access to it and turned Ethan into a High Incubus.

Body Description:
She has a beautiful face, coral lips and seductive eyes that make it difficult for all men to reject her. She's about medium height, fair skin colour and E-cup breast size. Her appearance looks seductive yet wicked at the same time. Her long purple hair is covering her back up above her buttocks. Her brown (red if she is in her demonic form) eye colour has an alluring gaze. She has a slender body like a model with no muscle tone, but behind it, she has the power of a strong Royal Succubus. She usually wears a tight outfit which is formed from her hair to make it easier for her to move.

A rich woman who married through arranged marriage at a young age. At the age of 35, she already has an 18-year-old daughter. Even though she was not happy with her marriage's life, but she still tried to keep it, unfortunately, her husband brought his affair home and demanded a divorce. In a state of depression, she decided to go to Ledred, a male prostitution district in Nighthallow City, to do a one-night stand with a prostitute just to vent her frustration and disappointment. But in the end, she met Damian and eventually fell in love with him.

Body Description :
She's about medium height, beige skin colour and D-cup breast size. Her appearance looks fragile and feminine with a soft gaze making her different from her tomboyish daughter (Olivia Creststream). Her straight brown hair is covering her back up above her buttocks. Her cyan eye colour makes her even more attractive. She has slender hands, no muscle tone, a narrow waist, toned legs, and small feet. She usually wears a mini dress with a coat that is mostly black, a thin makeup with sandy pink lipstick and wears no jewellery.

A female student at Diamond College who has a tomboyish appearance. She is a skilled female martial artist and is feared by all men for her fierce attitude. Olivia has fierce eyes that are completely different from her mother (Camila Creststream) since she got it from her father. She is Emma Lunaspark's best friend as well as her classmate, their relationship is so close that everyone says she is Emma's bodyguard. She considers all men as a virus that deserves to be exterminated from this world since she often sees her father mistreating her mother, but Ethan changes her mind. Olivia became interested in Ethan after he lent his sweater to Olivia and began to fall in love after Ethan accompanied her to find her mother in a prostitution district, Ledred.

Body Description :
She has a tomboyish appearance with fierce eyes that makes her feared by men and makes her different from her feminine mother (Camila Creststream). Her short straight brown hair is hanging up to her neck. Unlike her mother who had a soft gaze with a cyan eye colour, she has a fierce gaze and black eye colour, the same eye colour as her father. As a martial art, she has an athletic body with toned muscles, especially her arms and legs. She is slightly taller, has darker skin compared to Camila and C-cup breast size. She usually wears a simple t-shirt with a boyish jacket (she started wearing this after an embarrassing incident that made Ethan lent his sweater to her) and jeans. She never wears makeup so her lips remain in a natural colour and wears no jewellery.

A female student at Diamond College who has a feminine appearance and Olivia's best friend. Ethan has been in love with her since his first semester at Diamond College, but because Emma came from a rich family, Ethan decided to keep quiet and watch her from afar without daring to say hi. After Ethan turned into an incubus, he finally mustered up his courage to carry out his quest that connected to her and later he rescued her from the Rat Demons. He knows his father's real profession as a demon hunter from her since Emma is one of his father's discipline.

Body Description:
She has a sweet face, a gorgeous body with a soft gaze. Her shoulder-length silver hair, slightly curly with purple eye colour. As a demon hunter, she has an athletic body with toned arms and legs but not over, her waist remains slim making her look feminine. She has the same height as Olivia, has fair skin and C-cup breast size. She usually wears a feminine dress, but when she is on patrol she will wear a tight demon hunter uniform with a hood that covers her hair and face. She never wears makeup, except her favourite peach lipstick.

A 118 old fox demon who fled from the Hounds who wanted to make her their bride. She was almost raped by the Hounds but Ethan helped her and eventually made her as his servant so she wouldn't have to kill humans to survive in the human world.

Body Description:
She has an innocent face, a small body and blonde hair that hanging to her neck. Her red eyes have energetic gaze. She is a little short with beige skin and B-cup breast size. She usually wears a yellow hoodie and a black skirt and never wears makeup. Her ears which are shaped like fox ears are black and her two tails are yellow.

She is a crown princess of the Serpent Rock kingdom who is currently in exile period. During her exile, she lived as a commoner without any help from her kingdom. She lives next door to Ethan's house and is always helping him and his sister especially since Ethan's father passed away. She is an independent girl who is full of passion and easy to get along with. She met Damian in Nighthallow City when she was heartbroken and nearly became demons' meal. Eventually, she falls in love with Damian after he helps her to soothe her mating period pain and accepts her unusual sex habit that makes her difficult to get a boyfriend.

Body Description:
She has an elegant face with sharp black eyes, ivory skin colour and E-cup breast size. Her straight maroon hair is covering her back up above her buttocks. Usually, she wears office attire, such as a shirt with a blazer and skirt, besides that, she wears a simple mini dress. Her long tail is red with golden scales. Despite she has no muscle like Olivia but she has toned abs. She usually wears a thin makeup with sugar plum lipstick.

She is the Ledred District's ruler, a red light district specifically for male prostitution. She leaves from her home on Treasure Reef Island to the Vihrasil continent in search of her ideal man. With her wealth and talent, she deliberately changes a small district in Nighthallow City into a red light district since she wants to find a wild man who can conquer her among male prostitutes. Like the other Kraken's descendants, she has high pride and likes to play with newbie male prostitutes. She is usually at the Sea Devil Club, the biggest and most famous club in the district to have fun with the male prostitutes she chooses for a night. Later she falls in love with Damian after she finds two sides in him, even obsessing over taming him.

Body Description :
She has a cute face with eyes full of dignity. She's about medium height, pale skin colours like a vampire and D-cup breast size. She has shoulder-length, slightly curly, indigo hair with blue sapphire eye colour. Her favourite outfit is a black mini dress with deep cleavage, showing her sexy body clearly. And she can change her eight tentacles into ordinary human feet because of her royal blood lineage. Her tentacles have the same pale colour as her skin with a faint purple colour in some parts. She has a slender waist, no muscle tone and wears a thin makeup with nude lipstick.

She is the Diamond College's owner, the best College in Republic Aeros and Pearl's twin sister. Just like Pearl, she leaves Treasure Reef Island in search of her ideal man who is always described as a perfect gentleman. Even though they are twins but different from Pearl who likes to play around, Diamond has higher intelligence than her twins, making her think she is even higher than the others even among the Kraken's descendants itself. Later she falls in love with Ethan after he makes her swallow her own trap, even making her obey him after Ethan shows his dominance.

Body Description :
She has the same appearance as Pearl, what distinguishes them is that Diamond has a small mole under her right eye and softer gaze. Besides that, her favourite outfit is a turtleneck sweater with a skirt, sometimes she wears round glasses. Even though she has the same hair colour and length, she prefers to braid or tie her hair to the side.

She is a cafe manager at Tutty Fruity Maid Cafe, Peace Blossom Square, Ironshade Town and also an advanced demon hunter. She has a cute face with a sweet smile that makes boys fall in love with her. She became interested and obsessed with Ethan after he saved her in her cafe using his Hell Thunder. 

She is Ravenetwork's owner who often participates in interviewing the victims or the demon hunters who are involved in demon attack incidents. She becomes interested in Ethan after she guesses he is the one who helped Diamond in the Cretunt Bridge incident, so she tries to interview him, but he avoids her since he thinks Elenna's profession is too dangerous for his identity. 

He is Diamond College's student and also a good friend of Ethan since childhood. Despite his dramatic and childish attitude, he is very concerned about Ethan. Later, Ethan discovers that Larry is a top demon hunter as well as one of Ethan's stalker disciples, Ruby.

Tania (DLS) is a Dark Elf healer. Her tribe almost became extinct after a big conflict with the elves before finally deciding to exile and cover themselves by using the Tome Of Darkness to create an illusion wall. Later, she fell in love with Sarael, a necromancer who accidentally got lost in her tribe territory. And finally made a contract with Lilieth who turned her into a demon so she could heal Sarael .

Tania (TIS) thousand years have passed after the great battle in Lightglen City. Tania is Lilieth's trustee Demon General who has extraordinary healing skills. She and three other Demon Generals assigned to solve the crack problem between the human world and the dark dimension also took care of the demons who were trying to escape to the human world.

She is one of the dark dimension's elite soldiers. The daughter of the demon general, Sarael the necromancer and Tania the healer. Like other elite soldiers, she has to patrol and close the crack that appears in the human world. Lord Damon has prepared her and three other elite soldiers as the future demon generals to serve Damian.

She is one of the dark dimension's elite soldiers. The daughter of the demon general, Andrew the tentacle monster and Kitty the cat hybrid-beast. Like other elite soldiers, she has to patrol and close the crack that appears in the human world. Lord Damon has prepared her and three other elite soldiers as the future demon generals to serve Damian.

She is Ethan's stepfather's daughter from his first marriage. After his mother decides to remarry, she moves into an apartment to live with Ethan's mother and his stepfather. Their unexpected reunion at the hospital makes Ethan hope to get a clue about his mother's whereabouts. But instead, it makes Ethan even more confused. Just like Larry and Emma, she is also a demon hunter.

She is one of the dark dimension's elite soldiers. The daughter of the noble priestess demon. Like other elite soldiers, she has to patrol and close the crack that appears in the human world. Lord Damon has prepared her and three other elite soldiers as the future demon generals to serve Damian.

The Demon Hunter uniform has a different color list indicating the wearer's position.

*White - Newbie / New recruit

*Green - Rookie.

*Blue - Top

*Purple - Advance

*Black - Chairman

While Shadow has a yellow list with the symbol of the Demon hunter organization on the chest.

She is one of the dark dimension's elite soldiers. The daughter of the noble lust demon. Like other elite soldiers, she has to patrol and close the crack that appears in the human world. Lord Damon has prepared her and three other elite soldiers as the future demon generals to serve Damian.

She is the Tempestechnology's owner as well as an ex-advanced demon hunter. After she meets and falls in love with an incubus named Zael, she tries to create a magic tech to open the way to the dark dimension. She is also the main cause of Ethan's father's death.

Kir is Lord Damon's messenger and his mansion's guard. Despite his cute appearance and childish voice, his fighting/battle form is scarier than a rat demon. In his fighting form, his level is around elite soldier's.

She is Erebus' aunt. One of the high angels of the light dimension.

A thousand years ago, she went to the human world to help and protect Erebus upon her mother's request. But the situation was worse than she thought and she ended up trapped in the crystal.

Eventually, she met Ethan, who was trying to free her from the crystal and mistook him as Erebus.