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...
You should go back to being my kid sister 
and have me spoil you every now and then.
ينبغي أن تعودي كأخت طفلة بالنسبة إلي
وتدعيني أدلّلكِ بين الفيّنة والأخرى
Manchmal darfst du gerne wieder meine
kleine Schwester sein und verhätschelt werden.
A veces desearía que volvieras
a ser mi hermanita pequeña.
A veces desearía que volvieras a ser
mi hermanita pequeña.
Tu peux parfois redevenir
ma petite sœur et te faire chouchouter.
Stavo solo pensando che qualche volta
potresti tornare a essere la mia sorellina
Você devia voltar a ser minha irmã mais nova
 e me deixar te mimar de vez em quando.