I hate the older brother for being a pushover and younger one for being abusive. Actually hope he doesn’t redeem himself in so way at the end. Best ending is older bro dates someone else and ignores him, but this mangaka style is writing f*ck up characters in mess up relationships so it’s going...
I thought there was a chapter show them when they were in elementary school, anyone remember? I vaguely thought it was Fei carrying milk bottles and Dong helping him. Maybe I’m confusing it with other series