A yaoi manga about a guy in high school getting fucked by his father, when his father was ...

A yaoi manga about a guy in high school getting fucked by his father, when his father was in high school many girls was bullying him (the girls put him on a chair in the school, take off his clothes, put like a bag on his face, rope him, and then have sex with him) and so he get a child from one of these girls, so it's the main character, and then when the dad was taking care of his kid alone he were having hard sex with him as a punishment for what his mother did, and the father is a popular man, but he has a secret that just his son knows that he is afraid of womens.