Rinsama_'s manga / #WTF(2)

WHAT. I have so many questions and I want NONE answered. So there was this family, poor and in debt. One day, the dad said they'll split up and run away because some yakuzas are after them. The son, Chiaki, refused to do so. Thus, the sister said if he survives the Yakuzas, let's meet up later. (What) After getting dragged to the boss and after thr boss learnt his name was Chiaki, the boss took him as his son... Cuz his son that died was also Chiaki. That's it. And that dead son IS A DOG. He made the dog lick the butter on his abs??? And now he's having sex with Chiaki boy like.. BOY.

This gets darker and darker as you read.. and it started from some kink and/or accidents into the horror of a twisted human mind.