salt, pepper & nothing further's feed

He became his own brother lmao. I have so many questions on this chapter. Why did he say he wants to kill him? Who?? And spoilers say he does have a big bro and used that bros name, will we see big bro? I wonder what will happen if he, his younger self, and the big bro met cuz pretty sure the universal rule in time travel is not to let your past self see you (or at least recognize that you're the future them). Cuz if people found out he's not the real Hee Jae thats gon be one effed up timeline