Masayuki is suspected of killing his ex-wife when the police find her dead. There was a message written in blood on her hand that put Masayuki at a great disadvantage. The only one who can vouch for his innocence with an alibi was Yuki-Onna, who was with him at the time of the murder. But there's no way he can let a yokai provide a statement for him. Yuki-Onna asks Kotoko for help to track down the real killer.
If Muroi-san said the 12th, 
when the incident occurred,
،إن قال موروي-سان أنّ الثاني عشر، عندما وقعت الحادثة
Würde Muroi sagen, dass es der 12. September
war, an dem ihr dieses und jenes getan habt,
Bastaría con que Muroi te dijera
que el día 12 estaban haciendo tal cosa
Bastaría con que Muroi te dijera
que el día 12 estabais haciendo algo
Vous pouviez raconter n’importe quoi
quant à votre planning du 12,
Se il signor Muroi dicesse che il dodici, il giorno
 dell'omicidio, è stato proprio quel giorno a quell'ora,
Se o Sr. Muroi dissesse que o crime
foi no dia 12 em tal momento e tal hora,
Стоит вам сказать, что жену убили
в день, когда было то-то и то-то,