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.
We just happened to run into 
each other on our way back.
.صودف أن التقينا بعضنا فحسب في طريق عودتنا
Wir sind uns nur auf dem Heimweg
über den Weg gelaufen.
Nos encontramos en el camino de vuelta.
Nos encontramos en el camino de vuelta.
Ci siamo incontrati per caso sulla via di casa.
Nós só nos encontramos
no caminho de volta.
Мы просто встретились, когда я возвращалась.