Challenge:The challenge is a Godzilla/High School DxD crossover. alright here is how the basic blueprint for the story and how I expect the story to go down.
Main Character: The main protagonist(not Issei though he can be in the story if you want but if in the story has to be a secondary protagonist or a side kick to the main protagonist) has to be a Male/Human Godzilla hybrid. The main character has to have been a regular human before mutating into a Human Godzilla hybrid(he has to either have been injected with Godzilla cells as either a highly classified government experiment or by the Fallen Angels as a means to try and take over Heaven but the main protagonist has to have been the only survivor from the experiments and to have been a success.) and has to join the Occult research club while searching for a purpose. Other Original Characters can have similar back stories but the Kaiju's they gain there powers from have to have the same backstories as cannon from the Toho Godzilla movie series.
Parings: Main Protagonist x Akeno. Or Main protagonist X Kuroka/Akeno. or Main protagonist x Harem. No Yoai parings.
Plot: High School DxD anime cannon but some original arch's based on the Godzilla Showa era films and first Six Heisei series of movies and some arch's based on some Godzilla video games story mode's , these movies are, Gojira, Godzilla raids again, Mothra Vs. Godzilla, Ghidorah the Three Headed Monster, Invasion of Astro Monster, Godzilla vs. MechaGodzilla, Terror of MechaGodzilla, Destroy all Monsters, The Return of Godzilla, Godzilla versus Biollante, Godzilla Vs. King Ghidorah, Godzilla versus Mothra, Godzilla Vs. MechaGodzilla two, and Godzilla Versus Space Godzilla. Now here are the Godzilla video games, Godzilla games: Super Godzilla(NES) Godzilla Destroy all Monsters Melee, Godzilla Save the Earth, and Godzilla Unleashed.
Protagonist must have all of Godzilla's powers but has to train and work hard to get them, these powers are: Atomic breath, Red Spiral Ray, Nuclear Pulse, Magnetic Powers, Regeneration G1 Regeneration, Godly Durability, Godly Strength, Amphibiousness(can fight as well in the water as he can on land and be able to breath under water), Limited Precognition, can block out Telepathy without even knowing about it, can sense potential opponents, Fighting style: knowledge of Judo and Boxing, And to be able to take full Godzilla form and Full Heisei era Godzilla size of 100 meters (If you need more information go to Wikizilla and look at Godzilla's powers but for Godzilla and other Kaiju transformation designs for other OC's look at Matt Frank's Godzilla Neo series)
Personality: The Main Protagonist's personality has to be what I see a of human version of Godzilla's personality, he has to have a dark but realistic personality on his views of the world and of human nature, like someone who has been through hell and unimaginable torture, he must also have a I don't give a damn, If you mess with me you better be prepared to get owned, a calm lone wolf attitude. but must gradually grows to care about others and be able to have clear perspective about his life and about others point of view and show compassion towards he care's for and be willing to help them.