Shun's younger brother Fuyuki and his girlfriend Mamiya-san kissed.  When Shun finds out, he asks his friends what he should do as Fuyuki's older brother.
Fuyuki ignores his brother and goes on a date with Mamiya.  The gang decides to follow the couple on their date and end up at a karaoke box.
It's possible to request an 
extension in some cases, too.
Podrían expandir su hora si lo desean.
Podrían alargar su hora si lo quisieran.
Também dá para pedir para estender
 o tempo em alguns casos.