Two friends meet for dinner in a classy unagi restaurant, and get distracted by an apparently young girl who is confidently dining there alone. Somehow, this leads to talk of murder...
A high school girl? 
No, maybe middle school...
...فتاة في الثانوية؟ لا، ربما الإعدادية
Im Oberschulalter …?
Vielleicht auch noch im Mittelschulalter.
De preparatoria… No, de secundaria…
De instituto… No, de secundaria…
Elle doit être au lycée…
Sarà una studentessa delle superiori...
Está no ensino médio?
Não, deve ser aluna do fundamental...
Старшеклассница?..
Или даже помладше.