The return of the staff hero (Shield hero x Male reader)

Let's see what happens, when a jojo fan gets Isekai'd

WHITE-ONI [ THE RISING OF THE SHIELD HERO X OP MALE READER]

A young man, summoned to another world with four other peoples. However, there were only four Heroes that were summoned repeatedly through history to defend against the waves of calamity....then what is he..a hero who will protect the innocent or just an innocent bystander who got dragged in accidentally or maybe some...