Yuri's d1ldo's manga / #Older seme(76)

Big adoptive brother is a sick bastard in a twisted revenge lust for his adopted younger brother over an outlandish reason, the uke has the mind of a 5 yr old and the seme that's advantage of it. Straight up weird, even as a psychological perspective I find uke's personality such a huge contrast from how he was, the plot is not getting better anytime soon too so don't waste your time if it isn't your cup of tea