Ayaka comes home with Honoka to ask his mother if he can stay over at her house from now on. Despite her daughter's loud objections, Komachi Takamiya agrees, revealing that she actually had an agreement with Kazane in the past that, because they couldn't marry each other, their future children would be married to each other instead. Upon arriving at Ayaka's incredibly luxurious mansion, Ayaka and Honoka find themselves face-to-face with the escaped Medusa...