Su Yang, an 18-year-old pet store worker and animal medicine freshman, accidentally transports to a bizarre parallel world when a mysterious little sheep rams her in her shop. The sheep, which appears out of thin air, sends her through a wormhole to a vast grassland where she encounters a giant seven-spotted ladybug that speaks human language and a dark swarm of butterflies emerging from the horizon. The butterflies are controlled by Jian Yue, an SSS-class criminal who has just escaped from the Black Tower Prison. Jian Yue, having lost his memory after emerging from a cocoon, mistakes Su Yang for his tamer — a person with the ability to soothe and purify corrupted beastmen. He attempts to kill her, but her sheep spirit intervenes and triggers a deep mental connection. Su Yang urgently claims she is his tamer and gives a false name, Shu Fu. Jian Yue leaves after apologizing, and Su Yang loses consciousness.She wakes in a hospital cared for by Ming Songlan, a kangaroo beastman and patrol captain, and the seven-spotted ladybug — a beastman whose accidental wormhole brought her here. Ming explains the world’s fundamental rules: a corruption plague turns living beings into dangerous corrupted bodies; humans awaken spirit bodies to fight, with predatory animals becoming powerful but unstable beastmen, and herbivores becoming tamers who can purify mental scars. Tamers are exceedingly rare — only about sixty thousand among six billion people. Su Yang learns that she is now an E-rank tamer, the lowest level, and her stubborn little sheep is her spirit body. The world also practices a polyandrous system: one tamer can legally marry multiple beastmen, essentially granting her multiple husbands.Since returning to her original world is impossible, the empire and the ladybug take responsibility. Ming becomes her acting guardian, and Su Yang is enrolled at the First Combat Academy to train her abilities. Despite the strangeness, Su Yang feels liberated, having left behind a family that favored her brother and a limited future. She accepts the new culture and looks forward to her education.On her first day at the academy, Su Yang arrives alone. She sees a blue bamboo viper coiled on a tree near the security booth but it remains motionless, likely hibernating. Unaware that someone was supposed to pick her up, she waits and eventually heads toward the teaching building on her own. At the same time, in the student union, feline beastman Xie Li and canine beastman Sa Xue discover that Sa Xue had sent the snake beastman You Xue to meet the new student, forgetting that snakes hibernate in January. They rush to the school gate after checking surveillance footage and catch sight of Su Yang. Sa Xue immediately becomes captivated by her small, cute appearance.Thus begins Su Yang’s life in a world where beastmen and tamers coexist under constant threat of corruption. She will need to strengthen her spirit body, navigate the dangerous personalities of powerful beastmen, and possibly confront Jian Yue — the SSS-class criminal who believes she is his tamer and may seek her again. Her journey starts at the First Combat Academy, where she must learn to survive and thrive in this strange new reality.
