MR. IMMORTAL

*This book is just a test to see how long it takes before I give up on it. This is Alternate Universe. Doesn't follow the whole plot. Please comment and tell me how to improve the story to be more likable. No Haram too many books with op mc have Haram like 89% of OP MC type books I read have it.* Man dies and gets transmigrated as the concept of unkillable.