yu

He hates perversion and harassment so much because his father used to do that with his mother before he killed her... it was hurtful... horrible... and he didn't like it at all... so he started to hate everything related to that or even getting close to girls

Age: 18
Appearance: A gloomy boy with black, soft hair that is a little long, reaching his neck. He usually wears black and gray clothes that are loose, except in secret missions, of course. He is tall, adolescent, a little thin, has white skin, red eyes, and the left one that he always covers is gray. He loves his sister and protects her at all costs, even if it costs him his life. He is very introverted and loves isolation very much. He hates getting close to girls, harassment, perversion, homosexuality, romance, love, and other similar or related things.
He's not curious about anything. He usually doesn't care much about people... maybe he doesn't care at all... except for his sister, of course.

the past:

He lived with his family, but his parents always fought at night. One day, everything was strangely quiet. When he and his little sister checked, they found their mother murdered horribly. His father had escaped. Yu was in shock, trying to wake his mom while his sister cried. They were sent to an orphanage, but he ran away with his sister due to abuse. That night, a man tried to hurt them. Yu snapped and killed him violently. That moment, he felt a strange release, like revenge. From then, he secretly worked as a killer while raising his sister alone.