My starting summon is a small skeleton - Chapter 414: Memory 411

In the year 298 from the era of the gods, elementary school girls Sumi Washio, Sonoko Nogi, and Gin Minowa are tasked with an important mission. They are to become heroes and fight Vertex, a mysterious enemy that is attacking Shinju-sama, the god tree that protects Shikoku, the only area in the world that is still habitable. What they don’t know, is that this fight will cost them more than they could have ever imagined.

Leading a meaningless life in search of purpose... he was suddenly killed by his ex girlfriend!In his moment of death, a system notification snapped him back to life![You have awoken the Sin of the Meaningless]Waking up in a strange coffin, Seth eventually finds himself in a strange world with horrors and the supernatural...What was he supposed to do!He was just a lazy bum who wanted to waste his life!What's more, his ability was quite strange...[Progenitor Ability] : Meaningful Resurrection.

In a world ruled by ancient powers and hidden forces, Caelen was just another face in the crowd — until a mysterious encounter with a radiant woman awakened something deep within him.The Lust System.With it, Caelen begins a path of relentless evolution. Every woman who bonds with him fuels his growth — not just in strength, but in influence, power, and legacy. But these aren't passive followers. They're warriors, leaders, and legends in their own right — elf queens, demon generals, angelic saints, dragon-blooded fighters, and more.Each woman brings unique abilities and ambitions of her own. Together, they don’t just stand beside Caelen — they fight, conquer, and shape the world with him.As old factions tremble and new enemies rise from sacred temples, fallen clans, and forgotten bloodlines, Caelen must lead his allies through a crumbling world, forging a new age in fire, desire, and war.This is not just his rise.This is their revolution.

The first part is finished, and the second part is starting. Two worlds of immortals and demons, and the boundless universe. This decides the tone of the second part!