
Just saying, he is wearing a pad due to the injuries sustained during rape. And he thinks it's easier to tell his classmates that he is menstruating and laugh it off, rather than confide that he is being abused.
The description for the manga on mangago should be more explicit in conveying this rather than make out it's consensual .

No, it's shown that he is bleeding from anus due to injuries from the rape he experienced from the teacher. He is mocked for 'bleeding like a girl" by the teacher, and as self protection he tries to treat it as a joke when his classmates find out he has to wear pads, by saying he is "on his period" rather than admit to his class that he is being abused.
I don't know if he suffered the same injuries when his father was the primary abuser, the main focus is on the evil teacher. I guess I am concerned that the description on mangago for this manga does not clearly convey that this is a relationship based on rape, rather than the usual consensual yaoi teacher x student trope.
Looking for a yaoi manga where a highschool boy A sees his classmate B giving blow job to their P.E sir. B never attends swimming classes and he tells A that he has periods.He even wears pad.It was a really emotional manga, please help me find it. (B used to be abused by his dad)