After joining Qingfeng Peak, Lin Yue never cultivates, yet his pet-raising system grants him power rivaling the gods. The farm's old ox can crush divine kings with a single stomp, while the black dog guarding the gate can unleash attacks that repel countless demons and monsters. Even the egg-laying hen is descended from the primordial phoenix. After awakening an exclusive pet-raising system, Lin Yue receives generous rewards for raising pets. Qingfeng Peak has no disciples other than him, yet it occupies all the mountain's cultivation resources, prompting the other peaks to demand a merger. Under pressure, the sect master of Qingfeng makes a wager: Qingfeng must rank in the top ten of the newcomer competition. At the crucial moment, however, Lin Yue's master must leave on a mission and orders him to recruit another disciple before departing. Their new junior sister, Guang Xiaoyu, turns out to be a reborn Demon Emperor. Hoping to live quietly and rebuild her strength, she soon discovers that her seemingly useless senior brother conceals a fierce sword intent. When a Demon Emperor junior sister meets an invincible pet-raising senior brother, a lighthearted yet thrilling battle to protect their sect begins.