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.
That's why she suspected 
that it was just camouflage
لذلك السبب اعتبرت الأمر مجرّد تمويه
Deshalb muss sie das als einen
Vorwand betrachtet haben,
Por eso sospechaba
que no era más que una fachada
Por eso sospechaba
que no era más que fachada
Elle suspectait donc
qu’il s’agissait d’une tactique
Perciò, deve aver sospettato che lei 
stesse dissimulando l'intenzione di ucciderla.
Por isso ela suspeitou que
fosse só uma camuflagem
Поэтому она и посчитала, что вы просто
готовите себе алиби, чтобы убить её.