Comment by Dazai Osamu on I told myself one more chapter but now it’s 3am

@Dazai Osamu I believe that the brunettes parents died in the car crash and his mothers best freind (the blondies) mother took him in and raised him that's why I think he called him hyung (pretty sure that means older brother or someone older than you,I'm not from Asia nor know anyone from their it's just my rough guess and I can be wrong)