Description: Y/N L/N used to be a highschool student until he got hit by a teuck after trying to save a little girl. Next day, he realizes he's got reincarnated in the world of Highschool DXD as Diego Brando. How will the supernatural react to the appearance of the wielder of "The World".

Main Character: Y/N L/N a.k.a. Diego Brando

Harem:

Rias Gremory

Akeno Himejima

Koneko Toujou

Asia Argento

Aika Kiryu

Xenovia Quarta

Irina Shido

Ravel Phenex

Sona Sitri

Serafall Leviathan

Grayfia Lucifuge

Rossweisse

Raynare

Mittelt

Kalawarner

Venelana Gremory