Deku is an introverted computer programmer who works at home and doesn't leave unless he really needs to. He has a "sister" Mika who is the complete opposite. She's a flirty outgoing party girl who always seems to make trouble for Deku. Mika isn't really his sister. Deku has Dissociative Identity Disorder. His main identity is Deku and his second personality is Mika. Kacchan meets Deku when his company needs help with their website and he is instantly smitten with the shy young man. How will he react when he meets Mika for the first time? I am by no means a psychologist. I will probably be pretty wrong about D.I.D and I don't mean to disrespect anyone that suffers from this disorder. In this AU there are no quirks and being trans is not taboo and fairly common. I am just borrowing the characters from My Hero Academia that is written by the great Horikoshi. Mika is aware that she has the body of a male, but feels that she is female. Mika is the more aggressive of the two and is the protector. The times she has been confronted by her partners about her real gender she becomes violent. Not go to jail violent, put punching and slapping. When Deku becomes frightened or very stressed Mika takes over. I'm not an artist so I have borrowed the art for my story. I will credit the artist if I know who they are. This story contains Smut. If you don't like that please don't read. This story may trigger some because it talks about psychological abuse Deku suffered at the hands of his father.