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.
Wait, did I do something wrong?
I was just trying to warn you.
Espera, ¿hice algo malo?
Solo intentaba advertirte.
¿He hecho algo malo? 
Solo te estaba avisando.
Oh, ho fatto qualcosa di sbagliato?
Volevo solo avvertirti.
O que foi, fiz algo errado?
Só queria avisar você.