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.
If she's actually happy...
Wenn sie Spaß hat …
Si ella es feliz…
Si fuera feliz…
Si seulement elle me parlait…
Se fosse felice per davvero...
Se ela estiver feliz...
Если нравится…