Raising Disasters Across Human History

As a stray god, he initially thought his fate was to be used again and again, abandoned, left to wander, and then found again.

Over and over.

But his hidden emotions piled up together, and began to give birth to a wish. That wish began to swell until it could no longer be ignored.

He was chosen to take part in the Holy Grail War.

As a stray god, he could get no Heroic Spirit to answer him. From all of human history to the realm of the gods, no one responded to him, and no one could see him.

But one person lent him their power and answered his wish.

With the power he was granted, the stray god won the war and made his first wish: to have a name.

The Holy Grail, already corrupted, twisted his wish, and the stray god fell into different worlds.

Fight, awaken, win.

He was given a name and became a “Heroic Spirit.”

In the distant future, Ken once again heard the wish made by the “stray god” of the past.

...He answered his past self.

1. Mainly a Fate/Grand Order crossover. The power the protagonist gains during his first Holy Grail War comes from his future self.

2. No CP. Probably also a crossover with Jujutsu Kaisen, Noragami, and Touken Ranbu.

3. There will be out-of-character moments. The author's writing skills aren't great.

4. The protagonist's incarnation appearing in the Holy Grail War happens in a parallel world, not at the same point in time.

Theme: Better to rely on yourself than on others