Memoir of the past: History Lesson and a Lesson about Chaos in the Endless!

"The answer to your question is simple. But it isn't something that can be casually told." The Water Celestial promised Damien, "I will tell you about it when you grow up and become more sensible and strong."

"I understand," Damien said, not nagging him to give him an answer like someone his age should have. He was young, but he had been through a lot. Even a person who has one foot in the grave wouldn't dare say that they faced as many tribulations and tragedies as him. So he was quite sensible for his age and lacked childishness.

"Will you forgive this sinner for missing out on your childhood?"

The Water Celestial asked Damien after a moment.