That Time When I Fell Down the Stairs and Became a Jujutsu Sorcerer

Isekai is usually a pretty interesting read. MC gets killed in some wild dramatic way by truck-sama and gets slammed into another world. They get to enjoy some good times in a new environment, maybe become another character, that kind of thing.

So tell me why my story had to start by falling down the stairs at the DMV? At least it's not a super dark world where life and death are on the line, right?