Endless Civilization

This book witnesses the legend of a civilization and the decline of countless civilizations. This book is a science fiction novel because the darkness in the universe is the background. This book is a fan fiction, because there are many anime and game worlds involved, and there is no science fiction classification. This book is a harem novel because there are many beautiful girls. I like all the guides, but I won't accept any of them. This book is an infinite novel because it involves the multiverse. This book is an invincible novel because the protagonist can live even if he is dead. One chapter has a small number of words, after all, it is a student party. Well, let's just make do with it. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.