(Essence Meta CYOA)Emperor of Mankind Multiverse adventure in HotD

I don't own anime, movies, TV shows, or video games. I'm still new to writing and bored, so don't expect to finish. Alexander Yamato had died by truck-Kun in a meeting with a R.O.B and getting 1 wish with no limits. Alexander then choose Highschool of the Dead for his first choice of worlds go to. This story is going to be an overpowering harem-seeking protagonist, kingdom-building, army-building, and R18. I am going to add worlds later when done in the world I am in. 1st. Highschool of the Dead 2nd.***** 3rd.****