Kip. 4: Bath Concert! Let's Get Passionate Naked!

4

The government keeps cracking down on rock until it can't even be played in live music clubs. When Ryoma and his friends find themselves at a loss and head to a bath house to distract themselves, they realize they can put on a "bath house rock" concert there! Ryoma and Takasugi are excited for the concert, but in contrast, Katsura's not feeling the music. (Source: Crunchyroll)