Dian is a 16 years-old Highschool student with no friends, growing up without a father figure and the only one he has is only his mother. He also has a childhood friend next door who is a tomboy with a rash and short-tempered attitude yet tsundere-like towards Dian. His childhood friend is a martial arts expert and acts as a guardian for Dian.

Although his mother and childhood friend cares about him, other people hate and despise his very existence without him knowing what caused it, frequently bullied by the students at his school whenever his childhood friend is not present to protect him, and even looked down by society as if they're looking at worthless trash, living life filled with agony each passing day.

One day, when Dian and his childhood friend went back home after school, there is a white, shining circle below them. The event happened so suddenly that Dian blacked out and thrown into another world. Not knowing what happened, he only has 2 goals:
1. Finding his Childhood friend
2. Get back to Earth