Having been reborn into a different world in the Type-Moon universe, Yalin only wants a peaceful life after witnessing the collapse of the bubble economy. However, he accidentally discovers that he has simultaneously traveled through countless worlds.

Type-Moon world's Yarin: "Why is there a Holy Grail War everywhere? Aika, do you have any clue about this?"

Yarin from the Naruto world: "I've been transported to another world, akin to the Sengoku period of Japan. I will gather my forces and completely change this chaotic world. Wait, why is a shooting star falling from the sky? And there's a white-haired, white-eyed woman in front of me? Is her name Kaguya?"

In the Otherworld, Yalin: "Something's wrong with this world. Why are there abilities like hypnosis, sensitivity manipulation, and even time stop in the everyday world? They're all cheating, huh? Fine, I'm not acting anymore!"

.................

This is the story of a group of Yalin who relied on themselves.