Wo Kai Dongwuyuan Naxie Nian  

我开动物园那些年, Those Years I Opened a Zoo, King of the Zoo, Me and My Zoo

After inheriting a private zoo, Duan Jiaze had to agree to certain terms as part of his graduation contract. From then on, the Luya Zoo was established with an age restriction in place, preventing individuals under the age of 21 from entering.