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.
Oh, you could tell?
هل عرفت؟
Oh, das hast du bemerkt?
Vaya, ¿lo sabías?
Vaya, ¿lo sabías?
Vous avez deviné ?
Oh, se n'era accorto?
Opa, percebeu?
А как вы догадались?