K-On! Season 2 Episode 10 Teacher!

In K-On! season 2 episode 10, titled "Teacher!", the light music club is preparing for a school festival performance. However, their plans are put on hold when their advisor and music teacher, Sawako, falls ill and is advised not to come to school for a few days.

The girls are initially thrilled at the prospect of having free time during their club hours, but they soon realize that they need their teacher's guidance to prepare for their performance. They decide to visit Sawako at her home and try to convince her to come back to school.

During their visit, Sawako reveals that she used to be a member of a band herself and shares her experiences with the girls. She also shows them a photograph of her former band, which inspires them to create a poster to promote their own band.

Despite their best efforts, Sawako refuses to come to school, citing her doctor's orders. The girls decide to surprise her by performing a song outside her house, in the hopes of cheering her up. Their heartfelt performance moves Sawako to tears and she agrees to come back to school and help them prepare for their performance.

Back at school, Sawako's absence has caused chaos in the music room, with instruments left untuned and sheet music scattered everywhere. The girls work together to clean up and get back on track, with Sawako's guidance. They also practice their new song, "U&I", which they plan to perform at the festival.

As the festival approaches, the girls continue to work hard and receive support from their friends and fellow classmates. On the day of the performance, they take to the stage and give a memorable performance, showcasing their growth and talent.

"Teacher!" is a heartwarming episode that highlights the importance of mentorship and perseverance. The girls learn that even when faced with obstacles, they can come together and achieve their goals with determination and the support of their teacher and friends.