K-ON! - 1x09 - 新入部員！- Followmy.tv

Azusa officially joins the club, although is shocked to find everyone drinking tea and eating cake instead of practicing. She yells at them when Sawako tells her off for actually practicing, but Yui manages to calm her down. Despite her objections, Azusa finds herself weak against Tsumugi's tea and cakes. Yui herself is rather shocked at how much better Azusa is at guitar than she is. Sawako brings a pair of cat ears for Azusa to wear, leading Yui to give her the name 'Azu-nyan'. Noticing she is a bit upset, Mio encourages the band to practice more, but the group quickly reverts to its lazy state. Azusa becomes really upset since she cannot understand why the band members she admired at the live performance behaves like they do. Mio explains to her that she stayed with the band because it is fun to play with the others, and Azusa decides to stay as well.