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.
Huh? What are you talking about?
¿Eh? ¿De qué hablas?
¿A qué te refieres?
Di cosa stai parlando?
Do que está falando?