Zenless Zone Zero: The Six Street Bakery That Never Does Any Baking

(Luo Yin's storyline features a semi-overpowered growth arc and two female leads; Dio is invincible, has no female lead, and enjoys a leisurely retirement)

Though they were in different places, two complete strangers transmigrated into the world of Zenless Zone Zero at the same time. By a twist of fate, they became siblings despite having no blood relation, and a bakery that never got any actual work done opened on Sixth Street.

Dio, a towering, muscular, six-foot-five blond man with green eyes (whose soul transmigrated), and Luo Yin, a five-foot-eight eccentric girl with long white hair (an original character), set off on a journey through another world...

Dio: “Muda muda, what a clichéd opening.” Luo Yin: “Brother, you're pretty ‘old’-fashioned yourself.”

Dio: “Buga!”

(This book might not be very well written, since it's a wild mash-up of all kinds of characters. Be sure to switch your brain off. Also, these two aren't the only transmigrators in the story; more will appear later.)

By the way, the JoJo elements will gradually diminish until there's almost nothing left. I'll take your suggestions and add your OCs, then write stories centered around them.