A prostitute from Hananoya, O-Taki, has been killed. When Takuboku says, "I saw Kyousuke in O-Taki's room," Kyousuke becomes a prime suspect. Meanwhile, based on the fact that Takuboku's romaji diary was left in O-Taki's room, Kyousuke begins to suspect that Takuboku might have done it. Where does the truth really lie?
What motive could I possibly 
have for killing Otaki?
ما الدّافع الذي يدعني أقتل أو-تاكي؟
¿Qué motivo tenía yo para matarla?
¿Qué motivo tenía yo para matarla?
Quelle raison j’aurais bien eu
de tuer Otaki ?
E quale movente avrei avuto per uccidere Otaki?
Que motivo eu teria para matar a O-Taki?
И зачем мне убивать её?