Senri Minamisawa is dead. She became the fifth victim of the New Generation Madness, commiting suicide by impaling herself on a piece of rebar and then setting herself on fire in her own locked apartment.  Takuru and his friends are relieved, but at the same time uncertain that it's really over.  Just in case, they decide to stay together on the day of the next murder.  Everyone hides out at Aoba Clinic, where it should be safe, but then Yui and Itou go missing...
I'm not a detective. Don't expect me 
to solve a locked room mystery for you.
لستُ متحرّية. لا تتوقّع منّي أن أحلّ
لغزَ غرفة مُقفَلة لأجلك
Wir sind keine Detektive.
No soy detective. No tengo ni idea
de trucos de habitaciones cerradas.
No soy detective. No tengo ni idea
de trucos de habitaciones cerradas.
Je ne suis pas détective.
Non sono una detective.
Eu não sou policial. Não espere que eu resolva
 um enigma de sala trancada para você.