Isu, the race before man, their creators, and slavers, were all but wiped out of existence with an advanced weapon that tore a hole in the fabric of space and time to create the dimensional gap. But fate wasn't done with them yet, here comes Nova, the last of the Isu, their heir who will bring a wave of change to this myth infested world. And he is coming for blood.

The assassins have all but died out. The last remains of the Osaka brotherhood are left with the responsibility of restoring the peace to the world. Assassin Issei x harem. OC x harem.

What if Highscool DxD is Mixed With Assasin's Creed ?

Ezio may have used the excuse that his armor blunted Rodrigo's attack while in the Vatican, but what if he was saved by the very apple he stole from Rodrigo? And what if that apple was destined to help him become one of the strongest entities in the universe? [Ezio x Harem]!Slightly-Overpowered Ezio!Perverted!Younger Ezio [Being Rewritten]

He thought it was simply a mission. Just a... relatively... harmless mission to retrieve a Piece of Eden. Nothing wrong with that. After all, the Brotherhood saved his life more times than he could count, he owes them... but a mortal has no place in a fight between angels and devils. [Issei x Harem, for better or for worse]