The Cinderella panties have gone missing, prompting Keiki to step up his investigation. As a first step, he decides to spend a day with Sayuki - on a date, not as her friend or kohai, but as her master.
The trigger was when you
joined the Shodo Club.
El disparador fue
que te hayas unido al Club de Shodo.
Foi quando você se juntou
ao Clube de Shodô.