At the beginning of chaos, the world was divided into three realms: the realm of deities, the realm of men, and the realm of demons. The realm of deities sent a spirit seed down into the world to help the common people. But the spirit seed continuously absorbed the evil of the world and cruelly harmed living things. In the end, Sen Luo, the king of the deities, sacrificed himself and sealed it. However, because of it, the Shangqing Xianmen, where the realm of deities is located, gradually waned and was lost in history. A thousand years later, the ruins of Shangqing Xianmen started to appear in succession. All major sects fought their hardest for possession of the treasures in the ruins.

Bosanimal follows the daily adventures of a group of animals that live at their own pace in the human world even if it can be a bit messy and lazy at times.

An ordinary young man in a small town tries to learn the essence of martial arts, but he is set up by someone, and then suffers a tragic love and gets involved in a dispute in the martial arts world. He is wronged by others due to his identity. While struggling to survive, he gradually gets back his memories of his previous life and embarks on a journey to fight against the heaven. During this process, he wins the sincerest friendship and the most precious love. Even he has to go through countless difficulties and face the risk of death, he still stays true to himself. He fights for himself, for his fate and for justice, and never flinches no matter how powerful his opponents are.

In a Kaiju-filled Japan, Kafka Hibino works in monster disposal. After reuniting with his childhood friend Mina Ashiro, a rising star in the anti-Kaiju Defense Force, he decides to pursue his abandoned dream of joining the Force... when he suddenly transforms into the powerful "Kaiju No. 8." With help from his junior colleague Reno Ichikawa, Kafka hides his identity while striving towards his life-long dream of passing the Defense Force exam and standing at Mina's side. But when mysterious intelligent Kaiju attack a Defense Force base, Kafka faces a crucial decision in a desperate situation...