Transmigrating to a crossover anime world where gods and demons coexist, and cursed spirits dance with monsters. Lin Qingping, a top student from a small town, achieves first place in Chiba City's unified exams and enters Soubu High School. He's then chosen by Mrs. Yukinoshita to marry into the Yukinoshita family! He becomes Yukino's fiancé! He thought he'd be living off his wife for life, but unexpectedly, he awakens an upgrade panel! He starts by copying the Mystic Eyes of Death Perception, instantly reaching max level! He'll kill even gods if they're alive! Yukinoshita Yukino: "Yukino is one thing, but why did you even... Mom..." Yukinoshita Yukino: "I'll say it again, don't call me 'sister-in-law'! I was here first!" Suo Yuki: "Big brother is mine!" Hyuga Hinata: "Luckily, I only have one sister." Otsutsuki Kaguya: "Hagoromo Hamura, come and pay your respects to your Uncle Qingping!" Lin Qingping: "At first, I really just wanted to be a kept man!"...All virgins included! A harem fantasy!