It's the chibi rewind version of the end of last season when Dojin's friend tried to rape him and then stabbed Taehee but from Yeonwu's perspective.
Why are we going back in time-
so that the readers get a better understanding of yeonwu’s (and eventually taehwan’s) perspective, which will eventually lead to their current situation!
I felt it was something like that like of the past I just needed a clarification but thank you ^^
What in the hell happened why is Taehee dead on the floor