Lilia is a maid of the Greyrat household. After being sexually abused at a young age, she was disowned by her family, and cast away. Finding work as a maid, she would become a maid under the Asura's palace where she would later be shifted over under the concubine palace as the princess personal guard. At a later point she would later suffer a wound under the service of the princess, protecting her, and earning her a wound that would persist later in life. The wound was mostly taken care of, but there were sided effects. She was expected to never run or stomp with her full strength again, and got sacked concurrently. Seeing the writing in the wall, and fearing that she knew to much of the Asuran household she changed carts, and ran for the border where she would attempt a change in life, a quiet life. So marks her arrival at the Greyrat household.

Lilia has had a diverse past, and do to her experiences, is untrusting, and slightly on guard around people. She is a good judge of character, as well as familiar with reading between the lines, and other Asuran manurisms. Because of her circumstances Lilia can be a little subservient at times, but still has a strong core of her former, lesser noble, background. Will follow orders dutifully, and dedicate for you, so long as you are someone worth following. It has been ingrained into her that following one's master is ones greatest pleasure.

Zenith Greyrat, formerly Latreia is Paul's wife and mother to Rudeus and Norn. Born into a noble household in the country of Millis she was the ideal noble lady, earning the title Millis young lady standard. As such it was expected of her to marry, bear a child with another noble household, and fulfil her duty. To which, in her first act of rebellion, she ran away, and decided to risk it all. At the age of fifteen it would mark her start as an adventurer.

Bein the 'Young Lady Standard,' she had a sheltered upbring, and lacked much common sense; such as the price for everyday services, or commodities. Thinking that with her healing ability, and educated background she could make a profitable living as an adventurer, but lacking certain social skills she was taken advantage of, and exploited for her services, for several months before she would be rescued by a male adventurer, starting her days as a member of Paul's party the Fangs of The Black Wolf.

Zenith is a loving caring person from a monotheistic religion that practices monogamy. Abiding by the teachings ingrained into her, as well as those of her profession, she is caring to the core and warms the hearts of everyone she meets. The 'Idol,' of her group she is used to being the center of attention, even if a little ignorant of times, considering it second nature. A little flirtatious and playful at times, prominently around women or husband, she is the life of the party. A little bit absentminded she often gives the impression of social butterfly that must be protected. 

Because of these two sides of her personality, dutiful and playful, with a hint of naivety she is often underestimated. Zenith Greyrat can be described as the heart of whatever group she is in party or family.

Paul Greyrat. the father of Rudeus Greyrat, Norn Greyrat, and Aisha Greyrat. A talented swordsman reaching advanced in all three known sword styles in the world he sometimes has a big head on his shoulder, and tends to dive things head first in all aspects of life. Born under Asuran nobility Paul lived a lavish life early on, living a life with very little oversight, with the exception of his mother, and the head maid. Receiving very little regard in his own household, beings seen as 'that one noble that likes to flip skirts.' His playful nature, and later lustful nature put a divide between him and his household, predominantly his father. 

He would be sent to school early on as a form of correction only for him to continue his antics, and stretch that divide. Tough familial relations Paul will discover his talent in swordsmanship early on and use it as an escape. 

During these years, Valentina Greyrat, would become sick, creating a divide in the family. Because of his wife's tendency to check on him, even when in poor health, Amarant Notos Greyrat, Paul's father, would come to blame him for her death and lash out at him . This would mark the divide between Paul and his father, as well as a turning point in his life pushing him out of the household. 

Talented with a blade he found success as an adventurer. 

A lustful man that attracted and slept with many women during his years. He has a rogueish charm that attracted many women to him. Until the day he would meet his wife, he would have the reputation of someone that sleeps around. 

Finding her a little naive at first, and her finding him annoying, they would have a turbulent beginning, before finding happiness together. So long as he slept with her and only her she would sleep with him. After one night, she would be with child, and he would take responsibility later on.

Despite coming from a noble background Paul gives the impression more of that of a commoner with his mannerisms, and way of speaking. Being bold and playful, and having a natural ability to talk to others, he is seen as a charismatic figure if not a little perverted. Can best be described a person that does the good thing... eventually, but struggles getting there. Due to his hardships, and upbringing will do anything, including underhanded methods, to protect what is his.  His approaches usually causes conflict between parties.

Rudeus, In his previous life was hikkimori neet, living a slothful life filled with only all things otaku. Mangas, light novels, animes, regardless of medium he would switch between these three, and do so until the moment of his death. Do to an injury in his late youth he decided to take a break from the dull and cruel world, and sought an escape into fiction as his recovery. He did so, until his heart gave out and died from years of inactivity, reincarnating in another world.

Having lived a life wasted, and then reincarnating in a world of fiction; the protagonist was 'troubled' as to how he should tackles his new life. The only conclusion being, whether real or a hallucination, he would at least move forward one step at a time 'till he figure things out, less his heart give out again.

Being a shut-in for several years, he sometimes misses social cues, and can be  blunt in the way he approaches things. To the point where he can come across as rude at times.  Despite his analytical mind, he has the problem of focusing too much on a task or a person, that he can be surprised, or taken off-guard by things or people he doesn't take notice of.  Due to this devil may care attitude of his he causes headaches for the people around him at time. 

That said, despite his quirks, most people that know him tend to think of him as a lovable child, ahead of his peers, if a little mischievous.

...he's noted by certain characters to be interested in older women...

Roxy Migurdia a talented Migurdian mage. A petite woman, with the appearance of a young girl, as is standard for her race. Coming from a species that will retain their youth until their final days, she is often looked down upon(Literally). 

She has a complex over her height. 

Due to a handicap of not being able to read minds among her people, as standard for Migurdian's she felt ostracized and alone inside her village. When the call to adventure came, in the form of a traveling mage, broadening her world, she took it, and in the dead of night, set out to become an adventurer.

Several adventures were haved along the way, until the time comes where she would spend time on a small village in the outskirts of the border, meeting Rudeus.

Do to the protagonist insecurities, and reckless behavior; Roxy developed as a teacher in a way contrary to cannon. Still proud of her own ability, she sees their is more to life than simply talent, and by that consequence their is more to life; than hard work.

Thinks of the protagonist as a problem child she worries a little if he will behave properly without her to ground him, or keep him in check.

Although, technically her family name is Dragonroad, it is a mystery to her. Not something shared by her father  discarded due to 'personal' reasons, and being useless for all intents and purpose in everyday  life, it goes mostly unsaid within her family's walls. 

Only since his daughters birth has her father considered using the name again.

Sylphiette, or Sylphy as people close to her call her is the shy elf girl that usually follows Roxy or Rudy around in hopes of befriending them.  Being a nice girl to her her core, she had... 'difficulties,' relating to Rudy, and found the idea of being around him scary.

That said...

Rudeus' forthright nature made it quite easy, even for someone as socially inexperienced as Sylphy, of what type of guy Rudy is, and as such she's making an effort to get closer to him. 

Has a small(?) crush on him.

Unfortunately.... due to the protagonist not seeing Sylphy as a romantic interest it leads to Sylphiette feeling down on her self, and going on the offensive. Is becoming bolder and bolder, and seems to be inheriting some habits from Rudeus from all the time they spend together.

Her father worries about her future.

Being braver than her original counterpart her future is unclear.

The only thing for certain is that Sylphiette will soar high.