OMFG

im not sure but I think he meant that he wants to kill his grandfather himself this time which could mean that the grandpa died at the hands of someone/something else so he wants to be the cause himself if he was still alive or smthn but idk

nah he didnt. his grandfather would die again but this time by woojins hands "I'll kill him again myself" was what he said. It's be different if he said "ill kill him again" which implies that he killed his grandpa but the "myself" disproves that.

oohh thankgod

Ikr lol I totally misread it at first too!