전체 에피소드

지망 고교도 정하지 않고 미연시나 하고 있던 이치노미야 에루나. 사촌인 니노미야 시구레는 자신이 있는 학교로 오지 않겠냐며 그녀에게 팜플릿을 건네주는데…

자신이 동경했던 귀가부 선배, 세이사의 권유로 귀가부에 임시 입부하게 된 에루나. 거기에 더해 동아리 대항전에 귀가부 대표로 나가게 되는데…

대항전에서 의외의 선전을 한 에루나는 모두의 주목을 받게 된다. 그리고 이런 분위기에 우쭐했던 걸까 정식부원 승격을 두고 세이사 선배와 모의전을 하게 되는데…

밝은 성격의 동생을 봐오며 아카마 유토 안에선 그림자가 생기고 있었다. 그리고 부모님이 따로 살게 된 후로는 일상생활에도 일부러 밝은 척 연기를 하게 되는데…

루키전 승리와 함께 여러 동아리들이 부스를 낸 곳에서 타코야키를 먹고있던 에루나. 이런 에루나앞에 꿈인지 생시인지 세이사가 나타나는데…

에루나 격려회를 주최한 시구레의 방정에 에루나는 싸늘한 시선으로 받아친다. 한편, 미술부의 쿠즈류는 요즘 그림이 좀처럼 그려지지 않아 저기압이었는데…

신인전에서 우승한 후지시로 오토네는 쌀쌀맞은 한마디를 던지고 우승회장을 벗어난다. 한편, 에루나를 비롯한 연극부는 준우승에 그친 아스히를 위로하기 위해 서프라이즈 파티를 준비하는데…

신입생 오리엔티어링 행사인 트레저 헌트. 에루나는 세이사 선배에게 멋진 모습을 보이기 위해 잔뜩 기합을 넣는데. 그리고 에루나는 트레저 헌트에서 자신의 파트너가 오토네 인 것을 알게 된다.

Given until the upcoming midterm battles to find the third member for their club, Eruna and Otone use fake scandals in order to sneak promotion of their club into reports by the newspaper club, with not much result. As Eruna struggles to find members willing to join, Otone has the opposite problem of inadvertently scaring away anyone who is interested, as she is afraid they would get between her and Eruna. Upon stumbling across an empty classroom they could potentially use for their clubroom, Eruna is challenged by the newspaper club's Rumina Rikyū, who uses her Secret Memories ability to attack Eruna with embarrassing scoops from her childhood. Before Eruna is completed defeated, Otone uses her ability to plug Eruna's ears, allowing her to defeat Rumina. Thanks to Bimii transforming into human form to act as the club's third member, Eruna gets her "I'll Figure It Out Later Club" recognised and gains permission to use the clubroom.

Now having an official club, Eruna moves her sleeping bag out of Seisa's mansion and into her new clubroom alongside Otone. As everyone brings housewarming gifts, Rumina asks for Eruna's help in seeking out a rumored ghost haunting the school grounds. When Eruna and the Drama Club discover the ghost was most likely just Eruna hopping around in her sleeping bag, Bimii pretends to be the ghost to fool Rumina, but soon gets caught in a mysterious void. Meanwhile, Otone confronts Seisa over why she won't go see Eruna, deciding to fight against her when she refuses to listen. As Otone pushes her further into a corner, Seisa finds herself unable to use her Killing Art, only being saved when Eruna arrives on the scene.

After Otone runs off, Eruna becomes shocked when she notices some strange scars on Seisa's back. The next day, Otome apologises to Eruna, who asks her to help her train for the upcoming midterm battles. As Seisa stays away from the battles and shuts herself in, her Killing Art ability starts going out of control, causing temporary cracks to appear around the school. Investigating the school's photography club, Eruna stumbles into a different dimension and comes across Bimii. He explains that during her first year, Seisa was betrayed by the photography club upperclassman she admired, who seriously injured her with her ability, prompting Seisa to use her Killing Art to seal the clubroom away and shut herself in. With Seisa's Killing Art growing more unstable by the minute, the school itself starts becoming warped, with Eruna and Bimii falling through a sudden crack.

Eruna briefly sees a vision of people resembling Seisa, Shigure, and the girl she met when she first got her powers, before winding back in the real world, where the school has turned into ruins. Shigure explains that the people she saw were their ancestors who founded Mikagura Academy, stating that Eruna's ancestor gave Eruna her powers so that she could help Seisa. Eruna rushes over to see Seisa, asking her to join her club if she manages to win the midterm battles. After giving her thanks to her ancestor, Eruna makes it to the finals, where she is supposed to fight against Kyōma, but the others arrange for Seisa to fight against her instead. With Seisa regaining control of her power from the enjoyment of the battle, both combatants bring out their full power against each other. After the match ends in a draw, Seisa decides to join Eruna's club, which she names the "Afterschool Paradise Club".