Anime Crossover Apocalypse: Collect Heroine Illustrations, 10,000x Critical Hit

[Apocalypse + Heroine + Natural Disaster + System + Superpowers + Building Power] A crossover anime world, apocalyptic rewards. Xia Yu awakens a heroine encyclopedia system; collecting heroines makes him stronger. While others starve, Xia Yu feasts on delicacies every day. While others struggle to survive, Xia Yu is surrounded by heroines. [Yukino Yukinoshita: Evil Xia-kun, is this imprisonment game fun?] [Saya Takagi: You bastard, I don't like this feeling!] [Eriri: Baka! I, I don't like you!] [Chizuru Shiina: I've already turned into Xia-kun's shape!] ...