In 1983, Xu You'an is reborn on the day his third sister's engagement is called off. In his past life, his involvement in fights led to imprisonment, causing his father to commit suicide, his third sister to drown herself, his mother to die of illness, and his younger siblings to become orphans. Awaking in this new life, his entire family still views him as a reckless troublemaker bound to go mad at any moment. With his father paralyzed, the grain jar scraping bottom, and a 100-yuan debt blocking the door, Xu You'an awakens the Animal Contract System. Hunting grants contract points, and contracting beasts allows him to synchronize with their racial traits!