I NEED SPOILER PLEASEE ANYONEE!!!! Whos the brother etc pleaseeee

BIG SPOILER































Brother is the head of assasins group that tried to kill MC.
And this is idk how many times he has repeated his live cause of the mistakes of grim reaper.
So every time MC "died", he also comming back to this particular time. Hes just tired and bored with his lives up till he realise in this live,there are a lot of changes and its all because of MC. so he finds MC amusing and interesting.
He is cray cray but loyal to MC. He loves her as a sister,and will help her thru everything.

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I knew it lmao. I mean the regression part was obvious since he said it himself to the mc. But I always thought he wasn't bad BAD ifywim. Glad to see another sim- I mean, ally

YES THATS IT !! I LOVE THE STRONG RELATIONSHIP OF SIBLINGS HIHI