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.
And you maintained that
 friendship after graduating?
وحافظتما على تلك الصداقة بعد التخرّج؟
Hattet ihr auch noch
nach der Schulzeit Kontakt?
Vous continuiez à vous voir,
après le lycée ?
E avete mantenuto quel rapporto 
anche dopo il diploma?
A amizade se manteve mesmo
depois da formatura?
Вы общались и после окончания школы?