Wakana Gojo is an insecure but passionate hina doll tailor. Due to his hobby, Gojo isolates himself out of fear of ridicule from others. One day, Gojo meets Marin Kitagawa, a popular classmate. While he is on cleaning duty after school, Marin arrives, and they have a conversation where she tells him he needs to be honest about his true feelings. That night, Gojo reflects on what Marin had told him. When his sewing machine stops working, his grandfather expresses his desire to buy a new one. Whil
Marin explains her desire to cosplay as Shizuku, a female character from the erotic video game Slippery Girls 2, perplexing Gojo. She then explains that gender does not matter when one enjoys doing something, to which he agrees. Afterward, she gives him an instruction booklet on making cosplay outfits. The next day, an eager Marin unexpectedly arrives at Gojo's shop. Gojo feels uneasy about taking her measurements while naked, but an unfazed Marin strips down to reveal she came wearing a bathing
The night before returning to school, Gojo has a vivid wet dream about Marin. At school, Gojo evades Marin for most of the day. She finally manages to find him at the school entrance and asks if he wants to go shopping for the materials needed for the outfit. However, Gojo reluctantly refuses. When Marin finds him again, Gojo explains why he left. Seeing his low self-esteem, she assures him they are friends. They head to multiple stores to shop. Later that night, they head to a ramen shop, where
With a two-week deadline to prepare Marin's outfit, Gojo becomes stressed. When he heads home, his grandfather falls over after seeing one of the contents in Gojo's bag as it fell out. As such, Gojo takes him to the hospital, where his cousin, Miori, joins him. At school, Gojo explains what happened to Marin. Genuinely worried, she tells him she wants to help him in any way possible, so they exchange their contact information. Thanks to all the tasks he had to do, an exhausted Gojo becomes distr
Marin excitedly asks Gojo to take some pictures of her. When he does, he asks her to pose more as Shizuku would. Once happy with the results, Marin uploads the pictures on social media. She then tells Gojo they shall attend a cosplay event the following day. Marin is incredibly excited when they arrive there, while Gojo is more restrained. Later, several attendees approach Marin to take her picture. While he watches Marin have fun, Gojo wonders if this will be the last time they will hang out to
Gojo's grandfather returns home, and he is shocked when he sees Gojo and Marin hanging out together. Once they clear up the situation, Marin realizes she has fallen in love with Gojo. Marin tells Gojo and his grandfather about her family situation and questionable eating habits as they eat dinner. The next day, a young girl named Sajuna Inui arrives at the shop during a downpour, and Gojo's grandfather invites her inside. Following an embarrassing first meeting and misunderstanding, Sajuna event
Juju declines Marin's proposal to do a group cosplay until Marin and Gojo offer to split the studio fees. Gojo decides to watch Flower Princess Blaze!! for research. Later that night, his grandfather praises his improvement and encourages him to practice his tailoring and makeup skills with Marin. Gojo arrives at Marin's apartment the next day, only to find her disheveled. When she finally lets him in, she tells him they should watch the series together. As they do so, Marin realizes she is havi
Shinju shows Marin the camera she uses to take Juju's pictures and begins explaining the different filters and settings. The group then visits the studio, located at an abandoned hospital. Inside, Shinju shows the benefits of backlit pictures to Marin. Meanwhile, Gojo finds a scared Juju, and they talk about their respective dreams. When she reveals why she chose him to make her cosplay outfit, Gojo recalls another conversation he had with his grandfather. As such, he joyously grabs Juju's hand,
Gojo and Marin arrive from the store with the materials for the Black Lobelia outfit. Marin then shows Gojo a swimsuit under her clothes and asks him if he thinks it is proper for the cosplay. An embarrassed Gojo eventually tells her it is fine. Afterward, he is happy Marin can finally experience the joy of being helpful. Sometime later, Gojo presents Juju and Marin with their completed outfits before he does Marin's makeup with Juju's guidance. The girls head to the hospital, waiting for Gojo a
In the hospital, Marin and the Inui sisters have their photoshoot. Juju later thanks Gojo for helping Shinju realize her love of cosplay. Having finished, Juju and Shinju are at home, where Juju admits to Shinju she is jealous of her for pulling off such a cosplay. She then happily admires some pictures where Gojo appears. Meanwhile, Gojo is talking with Marin on the phone, and she gets jealous when Gojo tells her Shinju was at his house. Sometime later, Marin expresses her desire to cosplay as
Marin invites Gojo to a manga café, but Gojo feels embarrassed being alone with her. Marin recommends a manga titled SuccIDK to Gojo and expresses her disappointment that she cannot pull off cosplaying as Liz the Succubus. However, with Gojo's encouragement, she decides to try it. Gojo has difficulty designing the outfit due to the series' simple art style. They later meet for the photoshoot only to discover the studio Marin booked is actually a love hotel. Marin sits on top of Gojo to get the d
In her apartment, while Gojo helps Marin with her hair ribbons, he discovers her father canceled her invitation to go to a summer festival, as she had not done her homework. She tells Gojo she has been modeling for a magazine to save up for an expensive camera. When they decide to watch a horror movie, Gojo is nervous as he has not watched one before. However, by the movie's end, he analyzes the costumes while Marin is left scared. They then visit their school to retrieve Marin's math drills, an
Wakana helps Marin make a bunny girl outfit so she can cosplay as one of her favorite characters.
Marin and Wakana go to a cosplay event and meet another cosplayer named Amane Himeno.
Amane tells Marin and Wakana about his past and how he got into cosplay.
Marin represents her class enters the school beauty pageant and finds out she gets to cosplay.
Wakana and Marin finish up the suit for the Rei-sama cosplay but Wakana realizes something is missing.
Wakana finishes up Marin's suit for her Rei-sama cosplay and the day of the beauty pageant finally arrives.
Marin discovers the terrifying truth that she's gained weight and her cosplay no longer fits her.
Marin and Wakana go to a cosplay event. Marin meets up with Amane and Suzuka and Wakana meets up with Akira.
Marin tries to convince Juju to join their "Coffin" cosplay group.
Marin has a slight misunderstanding and Wakana has his first playthrough of "Coffin."
Everyone is getting ready for the upcoming Coffin group cosplay but they also have a surprise for Juju.
Marin, Wakana, and the others finally have their "Coffin" group cosplay session.