Mephilas: "Little girl, just say, 'I give you the Earth,' and I can grant any wish you want."
Little Girl in Red Shoes: "Okay, Mephilas, I give you the Earth. I have only one wish: please protect the Earth well."
Mephilas: "?"
Mephilas: "That's easy. I accept."
Little Girl in Red Shoes: "In ten years, the Earth will face an unprecedented crisis. Good luck."
Ten years later.
The bad news: the Destruction-Calling Body, the Spheres, ancient monsters, Dark Thunderbolts, and more have appeared on Earth one after another.
The good news: his teammates are reliable: Hayata Shin, Moroboshi Dan, Go Hideki, Hokuto Seiji, Minami Yuko, Higashi Kotaro, and plenty more.
Watching all kinds of crises gradually close in, Mephilas massages his forehead. "Seriously, man, what treasure does this Earth have? Why does every monster and demon want to come here?!"