On Valentine's Day, popular mystery author Aigasa Kurisu invites Kiyotaka and Aoi to the Shinkokan at the Yoshida-Sanso. But instead of an innocent book reading, they find a group of suspects and a mystery to be solved.
That's why I did it!
!لهذا فعلتُ ذلك
Nur deswegen hab ich’s gemacht!
¡Por eso lo hice!
¡Por eso lo hice!
Je l’ai fait pour ça !
Per questo l'ho fatto!
Foi por isso que fiz isso!
Вот почему я согласилась!