The three sisters, Riko (Yota Yuki), suddenly discovered that their home was full of mysterious idol merchandise...The true identity of that mysterious idol was the tip that her mother was obsessed with! In order to get rid of the crisis of Xiaoxiang's family being eroded by the idol, the three Lizi sisters immediately began to investigate, and found that their mother was even more trapped in the quagmire than they imagined.
Riko thought about whether she had a better hobby to help her mother get out of the trap, so she took her mother to the Yajima Hobby Shop.Mother and daughter slowly learned about their mother's heart by making plastic models...