Hiding her past as a former delinquent and living as an honor student, Torako Koshi encounters a mysterious girl with horns hanging from a telephone pole. This mysterious girl, Noko Shikanoko, becomes the source of turmoil that disrupts Torako's life.

Koshitan makes herself comfortable in the room of the Deer Club, but her little paradise is quickly destroyed.

Koshitan and Nokotan find a mysterious girl named Bashame collapsed at the entrance of the Deer Club.

The Deer Club is filled with eccentric characters, but the members of the student council give them a run for their money.

Koshitan no longer wants to be driven crazy by Nokotan and decides to spy on her to find her weakness. This leads her to the zoo, where she observes Nokotan at work.

It's finally summer in Hino, and that means one thing above all: a new look is in order! The students are wearing their short-sleeved school uniforms, and even Nokotan appears in a new, somewhat concerning state.

Nokotan wants to participate in the Deer Collection and needs Koshitan's help for it. Koshitan livestreams what daily life is like in the Deer Club. The owner of Café Swallow takes pride in his perfect service, but then Koshitan and Nokotan visit his establishment.

The girls gather for the traditional first shrine visit of the year, but one of them is missing—Nokotan. Soon, the reason for her absence becomes clear, as she is being worshipped at the shrine as the Deer Goddess...

Hinominami High School is holding a sports festival! As student council president, Koshitan wants it to go smoothly, but various incidents occur. Will the student council be able to see through to the end of the sports festival?!

At the clubhouse, Koshitan finds Nokotan in tears and acting strangely...she's concerned at first, but it turns out to be hay fever. Now, Nokotan's trying to think of ways to cope!

Nokotan has disappeared from everyone's memories!? How is everyone going to handle this sudden serious episode? Koshitan and our viewers are put to the test in the finale, "Farewell Nokotan!? Long Live the Deer Club!"