Rape in yaoi is pretty common (which is why a lot of ppl hate this community but we're developing) but the reason why I'm more pissed at this than I usually am at other stories is because of how big brother was literally so insecure and believed that all these years, his own brother hated him and felt that he needed to repay his parents for taking care of him. Once he tells that to his little brother? He fucking raped him again. The first time he was raped already spoke so much about how lil bro doesn't have any respect for big bro. Lil bro did it because he felt it satisfied (not in a sexual way) him better, but he didn't think about how it would affect the big brother. Also, pointing it out, big bro seems like a very lonely person. The only people he thinks about are his parents who he wants to repay everything to. Listen asshole, what this guy needs is some love, care, and affection. Not manipulation sex. I'll cry if there isn't any character development.
I like him as a person and he seems like a supportive enough guy, but I'm afraid he'll suffer from second male lead syndrome wuwuwuwu