On the edge of the modern bustling city, there is a mysterious Shanhai Academy, which specializes in training pet trainers who can sign contracts with Shanhaijing pets and fight together. Su Ran, an ordinary boy, Ye Lan, a genius girl who is good at mechanics, Chen Yu, who is from a wealthy family and is proficient in medical skills, Zhao Meng, who is taciturn but has amazing power, and Lin Xiao, who is eccentric, came to the academy because of their respective chances.
At the beginning of school, they faced various challenges, such as rigorous physical training and complex pet knowledge courses. In an unexpected pet riot, Su Ran awakened the sleeping pet Di Ting, who has the ability to see into people's hearts and have super hearing. Influenced by Su Ran, other people also signed contracts with pets one after another. Ye Lan's Qin Yuan is capable of releasing poison and is flexible and small; Chen Yu's cunning is good at change and healing; Zhao Meng's guard has explosive fighting power; Lin Xiao's red-eyed pig demon looks cute but has great strength. During the process of getting along, everyone gradually became friends and jointly faced various problems in the college.
