Ordinary programmer Liam is selected to enter The Abyss, a Cthulhu‑inspired rule‑horror dungeon. By chance, he binds to the Paranormal Multi‑Blessing System. While others struggle to survive by strictly following the rules, he gains affection points with the eerie head maid Selena. Aboard the death‑trap cruise ship, he plays a high‑stakes game against monsters, forms an uncanny couple with the supernatural being, and brings new lives into the world. In the end, he builds a safe haven for a cross‑species family.