the intense heat of summer had just wiped out the members of the Sakurako Keion-bu.

although it was summer, it was intensely hot in the school, let alone the enclosed music room. Mio was particularly irritated that her neck was sweating as her long hair trapped the heat. Ritsu advised her to tie up her hair and helps her to do so, tying twintails just like Azusa but Mio wasn't particularly happy about it. The girls then discover Ton-chan shedding and Yui wonders if they could do the same. Ritsu tells her that it was obvious that as humans, we can't, but what Yui really meant was to change into their school swimsuits and practice which she feels much cooler with the reduction of cloth. As usual, Mugi joins Yui in the "shedding" and lied on the table, in hope that the table surface is cooling ... but it wasn't. After hearing that sweating could help one lose weight, Mugi and Mio both went into the animal costumes (aren't they supposed to be returned?!) and played their instruments in order to sweat in that stuffy suit. Ritsu then tried to "cool" things down by playing some games and somehow linked it to a ghost story to scare Mio but it turns out that the supernatural being Ritsu was trying to scare Mio was actually Sawa-chan. It did gave Ritsu a huge bump on her head after that and Yui and her then decided to "think" that the surrounding was cold but failed terribly. Mio then remembered that there as a fan here in the music room and took it out. As Ritsu was unhappy that she's unable to feel the fan since the drummer is always at the back, she snatched the fan away from the others, turn it up to maximum power and spoiled it. Without the fan and with nothing else to come up with, Mugi brought her ice box over which everyone enjoyed the cold touch of it. Ritsu also took the chance to slip a piece of ice down Mio's shirt that caused her to stand up immediately as it was freezing for her back. The rest of the ice was placed in a pail which Yui and Ritsu shared for their legs but the ice didn't last long in the intense heat and had already melted away. Azusa then sees that as Ton-chan is shedding, it must have a desire to grow but they would require a larger tank. Mugi tells the others that she has a spare but it was too large to carry here and the rest decides to find Sawa-chan to help transport the tank with her car. Just as the girls were wondering about Sawa-chan hardly appearing in the music room and such, Yui and Ritsu identified the reason when they saw Sawa-chan sitting in the air-conditioned staff room. After Mugi manage to bribe Sawa-chan to help them transport the tank with a ice float, they return with Sawa-chan still looking amazed after going to Mugi's house. The girls then decides that they need a cooler in the music room and asks Sawa-chan for help which she asks them to direct it to the student council instead. So off Ritsu and Yui went to find Nodoka and acted out some small skit to let her realise that they are in need of a cooler. It failed and Mio have to explain verbally to Nodoka about it and then she realised that Ritsu had forgotten to request for a cooler when Nodoka reminded her to which lead to a meeting having to be planned out for the student council about the cooler. Back in the music room, the girls then tries to practice some counter arguments that they could encounter in the meeting but there wasn't a need to since there wasn't any objection to the request of having a cooler in the music room at the meeting at all. So the girls got their cooler and practice can finally resume.

Mugi seems quite enthusiastic in this epi, and i wonder what exactly did Sawa-chan see in Mugi's house that made her so "fascinated" even after she came back. Mio with Azusa hairstyle really LOOK alike with her, just that her tails are abit longer but i'll prefer ponytails :D