It’s been so long since I’ve read this yaoi and I’ve been looking for it forever. It’s an incest tragedy (I’m pretty sure it’s considered tragedy but I’m not sure how it ends) it’s about a brother that blackmails his brother and rapes him and ends up pushing his brother to becoming an aloof person who hates his brother and their type of relationship. I can’t remember much from it but I do remember that it had like 12+ chapters. Any help would be great!

Kokoro O Korosu Houhou
This made me realise a lot of BL incest stories are tragedies and pretty much playing with the sanity of characters :/