Enter Jonas, enter Prince Charming, enter Christine.

After mutual confidences, Anne spends a June evening at Green Gables and attends Diana's wedding.

Sakuta dreams that on Christmas Eve, when he is meant to have a sleepover date with Mai, he instead goes on a date with a student named Sara Himeji from the cram school where he works. The Sara in question has the same dream as Sakuta and goes on to confess that she has her own Puberty Syndrome. However, she says that she does not want her Puberty Syndrome to be fixed. Sara developed Puberty Syndrome after a heartbreak, and the symptoms of her syndrome ease her anxiety by making her popular with guys, which she has been enjoying. Sakuta warns her that this is a dangerous move. To which she retorts to provoke him, “What should I do so that I can love people. Like you do, Mr. Sakuta?”

Sakuta sees a familiar Miniskirt Santa on a beauty pageant website that his friend was looking at.

Marin has a slight misunderstanding and Wakana has his first playthrough of "Coffin."

Marin has a slight misunderstanding and Wakana has his first playthrough of "Coffin."

Marin has a slight misunderstanding and Wakana has his first playthrough of "Coffin."

Marin has a slight misunderstanding and Wakana has his first playthrough of "Coffin."

Marin has a slight misunderstanding and Wakana has his first playthrough of "Coffin."

Marin has a slight misunderstanding and Wakana has his first playthrough of "Coffin."

Marin has a slight misunderstanding and Wakana has his first playthrough of "Coffin."

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 tries to convince Juju to join their "Coffin" cosplay group.

Marin and Wakana go to a cosplay event. Marin meets up with Amane and Suzuka and Wakana meets up with Akira.

Marin discovers the terrifying truth that she's gained weight and her cosplay no longer fits her.

Wakana finishes up Marin's suit for her Rei-sama cosplay and the day of the beauty pageant finally arrives.

After her boyfriend Takumi Fukuyama was unable to remember who she is, Nene completely forgets her own identity, and believes that she is Touko Kirishima. The only person who can correct this Puberty Syndrome is Takumi, and Sakuta believes doing so will help him protect Mai. He and Ikumi Akagi rush off to Hokkaido, where Takumi’s hometown is. As Takumi welcomes them at the airport, Sakuta shows the trophy that Nene won at a beauty contest...