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.
Thank you, but you shouldn't get 
too deeply involved, my princess.
.شكرًا لك، لكن لا يجب أن تتورّطي كثيرًا يا أميرتي
Danke, aber du solltest dich nicht
zu sehr einmischen, meine Prinzessin.
Gracias, pero no deberías involucrarte
demasiado, mi princesa.
Gracias, pero no deberías involucrarte
demasiado, princesa.
Merci.
Grazie.
Obrigado, mas não devia se
envolver tanto, princesa.
Спасибо. Но тебе лучше
не ввязываться в это, принцесса.