Boku wa Tomodachi ga Sukunai S01E07 - My Cell Phone Has Few Calls

As Summer rolls in, Kodaka asks Yukimura to provide Maria with her lunches in his place, though Yukimura misinterprets what qualifies as 'healthy food'. As the group decides to exchange e-mail addresses so they know who's coming into the clubroom over the summer, it is revealed Sena doesn't have a cell phone. She ends up getting the same model as Kodaka's, only to get spammed by a jealous Yozora.