Other people's cats are only responsible for being cute, but Jucai has to support two families. By day, it helps Lin Nuan prop up a small restaurant on the verge of closing; by night, it carries food through the tree door to take care of its injured mother and young siblings. But the tree door is growing weaker day by day, and a mysterious company has set its sights on its secret. Facing a crisis in its homeland, Lin Nuan decides to stand shoulder to shoulder with Jucai to protect it; two families, not a single one can be left behind.