(Grand Blue is the main setting, with Gintama characters added. Kamen Rider Fourze is the protagonist, with Matsuzaka Satou as the sole heroine.)
My name is Ishigami Kisaragi. I’m a freshman at Kawano Ten University, and I love space. Lately, all kinds of strange things keep happening in my dreams.
In them, my older brother, Ishigami Senku, is a genius who rebuilt the entire technological tree from scratch after all of humanity was petrified, and eventually made it to the moon.
My younger sister, Matsuzaka Satou, whom I picked up, is a dangerously obsessive yandere who’d do anything to possess the person she loves.
My unreliable teacher, Sakata Gintoki, is the White Yaksha who defied the Amanto in a complicated world to save his teacher.
Even my first college friend, Kitahara Iori, is a booze-addled, worthless yet beloved buddy in my dreams.
Without exception, I’m nowhere near any of them in these dreams.
So I’ve figured it out: I’m the god who knows the secrets of the universe!
“Shut up, you 100-billion-percent idiot little brother!”
“That’s right, Kisaragi. You’re my god.”
“Huh? How dare you say that, you pompadoured idiot who does nothing but cause trouble!”
“You tokusatsu-and-alcohol-obsessed moron, get some self-awareness!”
After receiving a letter from our father, Byakuya, the three of us siblings came to Kawano Ten.
(Stop changing the subject, you bastards! ×3)
But there are strange beings called Star Apostles at this school. As a Rider, it’s my duty to stop them!
As I keep transforming, I discover something: maybe I’m not normal either!
