Beginning: Wherever I Go, I'm Always a Favorite

In the world that has just been restarted, demons are rampant and people are in dire straits. And this, to the immortal, is just the fish in the fish tank competing for food. "These fish are making too much noise. Throw a fairy fruit down there and make some noise!" The bored immortal throws down a fairy fruit, and the world where the struggle has become fierce boils again!