You are walking home after a long day at school when you suddenly hear the faint sounds of shouting around you when crossing the road all you see when you look up is a truck before you pass out

You start to wake up only to find yourself in a dark alleyway with a fuzzy blob like creature inside your bag and when you sit up you notice that outside of the alley are the busy streets of Tokyo, when you realise that the fuzzy blob is a curse, and that you've been isakai'd into Jujutsu Kaisen