OC's (I know this sounds dumb... because it is. It's also only gonna be ones that have been fleshed out... and ones that I still like.):

Katawa Shoujo:

Natto/Kim: An only child raised in modern Japan (where is irrelevant). He was kidnapped and held for ransom at the age of six. Following that, he would become mute due to the traumatic experience. He returned to school almost immediately following the incident, only gaining the help of a teacher who gave (minimal) extra help. This would cause him to barely pass each year. But above all, in the eighth grade he found a want to be female. He had no reason as to why, but he just did. He would begin to wear more feminine clothes, such as dresses and skirts. He would also begin to get bullied by classmates for doing this. And although some would sympathize with him, he didn't care. He wanted to kill this urge to be someone else. This would lead to the creation of a new personality, Kim. She would represent the person he wanted to become; calm, happy, and friendly. She, however, would gain his mutism and be heavily anti-social due to the slack he got for wanting to become a woman. On the other hand, Natto began to speak. He was angry, violent and aggressive. He hates Kim with a passion because she is what he wants to be, but fears to become. They both know sign language, and even think in it instead of words, but Kim doesn't speak and Natto can now use words. They went to a regular high school for two years before being transferred to Yamaku.

Ella: Born in England, she lived there for sixteen years of her life. For some odd reason, she was born only able to see in infrared, or heat signatures. This made it hard for her to do certain things, such as recognize people by face or do work as they would relatively look uniform. To do work, she would be read the questions aloud and she would say the answer back, which is when someone would write down her answer for her. This continued until her parents heard of Yamaku High School for Special Students. They decided that it would help if Ella could be around more people with odd conditions like her and with teachers who could help her better. Her condition makes her legally blind, and she also has a cane to help navigate. She still doesn't know why she has this condition, and her doctors say that it's something they've never even heard of, let alone seen before. Her eyes have a black color to them when looked at from the front, but have a blue and green tint when looked at from an angle.