Kaori Moriyama

Theatrical adaptation of Aneko Yusagi's light novel series "The Rising of the Shield Hero."

Rikutaro and Mariko are in the same grade at an elementary school. They become brother and sister after Rikutaro's mother and Mariko’s father marry. After their marriage, the children become upset because they are teased by their classmates, so they hatch a plan to make their parents divorce.