Exactly what it says on the tin. This book contains swearing and some dark/mature themes. Proceed with caution. Also cross-posted to AO3 under the same username. Disclaimer: I don't own Danganronpa or its characters.

What happens when an all mighty member of the saiyan race shows up at kuoh academy? Will the saiyan be able to survive the mundane life of a high schooler, or will he crack under pressure. Highschool dxd belongs to Ichiei Ishibumi DragonBall, DragonBall Z, DragonBall GT, and DragonBall Super are all owned by Funimation, Toei Animation, Shueisha, and Akira Toriyama

you were a man with a special ability to turn into the legendary Pokémon, Rayquaza. but when the world is in danger of destruction from threats like the saiyans, frieza, cella, Majin buu and other troubles to come. it's up to you and the z warriors to defend it.