When a number of female murder victims are discovered in Ueno Park with lilac flowers in their mouths and one of Shizuru's books by their side, rumor spreads that he may have some involvement in the case. Worried for her friend, Tsugumi learns that the murders seem to be inspired by a certain book where both Shizuru and Sasagoi-san have ties to the author. When Shizuru is taken away by the police for questioning, Tsugumi works with the rest of Fukurou to find the real killer before it's too late.
Since you were a student 
of Moritsune Saichou,
،بما أنّك كنت تلميذًا لموريتسوني سايتشو
Da Sie ein Schüler von
Moritsune Saicho waren,
Como era estudiante
de Saichou Moritsune,
Como era estudiante
de Saichou Moritsune,
Vous qui étiez un disciple
de M. Moritsune,
Visto che è stato uno studente
 di Saichou Moritsune,
Como você era um pupilo
de Saicho Moritsune,
Поскольку вы были
учеником Сайтё Морицунэ,