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.
B-Birthday?
عـ-عيد ميلاد؟
G-Geburtstag?
¿De cumpleaños?
¿De cumpleaños?
C-Compleanno?
Aniversário?
На день рождения?