Shimamura just happens to run into Adachi's mom at the gym and they have an awkward encounter. Later on, Shimamura invites Adachi to karaoke with Hino and Nagafuji.
I can't say that I have a clue.
Tja, wenn ich das wüsste …
No puedo decir que tengo idea.
Quién sabe, ni idea.
Va savoir…
On peut pas se mettre à sa place.
Non ne ho proprio idea.
Não faço ideia.
Не знаю. Это сложный вопрос.