Slaughtering Realms! I Became the Yandere Demon Lord's Obsession

One minute dead, the next bound to a bizarre system with one rule: complete the tasks or perish for real. Li Nian's first mission? Marry the ancient Demon Lord of the Demon Pool and grind intimacy points with him. Ridiculous! Except this 'old devil' turns out to be a devastatingly possessive yandere who loses his mind at the slightest provocation. Armed with wit and zero patience, Li Nian tames the untamable, levels up through sheer audacity, and carves her path to dominance across three realms. But when the Demon Lord pins her close and purrs that she's his eternal pet, she's had enough. Time…