Sign-in in the Underworld for thousands of years

Ethan spent one thousand years in the Underworld without ever truly dying. While others feared King Yama, Warden Black, Warden White, Ox-Head, and Horse-Face, Ethan became their trusted brother by quietly working, sweeping, checking in, and collecting hidden rewards across every corner of the Underworld. ⚰️✨ When he finally resigns and reincarnates, he carries his memories with him thanks to the Evermind Elixir — along with a thousand years of treasures from the Underworld Check-In System. But his new life begins with a shocking twist. He is born into the ancient Ashwood Clan beside his twin sister, Aurora — the reincarnation of a legendary Empress who spent one hundred thousand years preparing for this exact life. Everyone expects Aurora to be the clan’s greatest miracle. Then Ethan is born. The heavens split open. Celestials and demons descend together. And ten thousand gods and fiends kneel before a newborn baby. With the Primordial Seraph-Fiend Body, underworld treasures, and memories from his past life, Ethan starts far beyond ordinary geniuses. Even the reincarnated Empress beside him begins to realize one terrible truth: after one hundred lifetimes of preparation, she may have already lost to her own little brother. From Underworld official to heaven-defying divine baby — this is his story.