Tea

So it’s a BL manhua where both the main characters are students. I’m not sure if they’re in the same year but they play for different football teams I don’t remember all the details but I think they first met on a train and the mc initially thought the ml was a pervert. The mc sister likes the ml and I think the ml might have been interested in her at first too but eventually he starts developing feelings for the mc I know this is a bit confusing but please help me find the manhua

It's a shounen ai. The story goes like this: the seme and uke are in a relationship and really love each other, but some kind of glitch happens in the system. Now, the seme forgets his current memories and thinks he is a character from a novel he read. His identity keeps changing after each arc finishes.