Three siblings, Shōma, Kanba and Himari Takakura are living together, despite the fact Himari was given only a few months to live by the doctor. The three visit an aquarium to see the penguins, where …

The Penguin Spirit appears again and tells Shōma and Kamba to board a train and find a girl named Ringo Oginome who may possess the Penguindrum. With Ringo attending a girl's school, Shōma and Kamba s…

As Ringo contemplates making a special curry for Tabuki, Shōma and Kamba, having been reminded about Himari's fate if they don't cooperate, break into Ringo's house to search for the Penguindrum. Afte…

As Ringo gets help from Himari preparing lunch for a 'date' with Tabuki at the park, Kamba tasks Shōma to go with her and look through her bag for her diary, believing it may be related to the Penguin…

Asami Kuho, the girl who was pushed down the escalator, is questioned by a woman named Natsume, who then fires a red ball at her head, causing her to remember nothing about the incident. Kamba hears t…

Kamba goes to see Asami only to find she has forgotten all about him. He tries getting some information out of two other girls, but they are attacked by Natsume's red balls, causing them to lose their…

Tabuki invites Ringo to see one of Yuri's plays with him, followed by dinner, where Yuri invites her and Shoma to a party. At the party, Yuri announces that she and Tabuki are engaged, but Ringo remai…

Ringo attempts to make a move on Tabuki only to find he is not there as his roof had a leak. The next day, Tabuki tells Shoma that he is moving in with Yuri, which does not settle well with Ringo, who…

Himari has a strange dream in which she meets a man named Sanetoshi, who shows her various books containing her memories. In elementary school, she formed a group called Triple-H with her best friends…

Shoma wakes up in hospital with supposedly minor injuries, keeping quiet about what happened between him and Ringo from his siblings. As Ringo explains what happened to her diary to him, Natsume disgu…

Kanba goes to confront Natsume about the memory-erasing balls and why she desires the diary, unaware that she only has half of it. Meanwhile, Ringo is still determined to complete Project M with or wi…

Kanba goes home and is called by Sanetoshi claiming that Himari will die once more. Shoma goes into detail of what happened 16 years ago, as Shoma and Kanba's parents were high ranking members of a te…

Sanetoshi offers Kanba a special medicine to revive Himari, though mentions there will be a steep price in return. Kanba recalls three years ago when he and Shoma learned about their parents being cri…

Yuri, after breaking off an affair with one of her co-stars, feels a longing for a certain someone. Meanwhile, Shoma is ignoring Ringo, feeling she will never be able to forgive him for what his paren…

Yuri holds Ringo into her room that coincidentally is next to a room Shoma is staying with a classmate on a field trip. Shoma rushes to rescue her after figuring this but he trips and falls unconsciou…

After realizing that she was tricked by Yuri, Masako reminisces about her grandfather, a powerful business tycoon who expelled her father claiming that he was not strong enough to be allowed a place i…

The Takakura siblings are enjoying Takoyaki together and happy with the news that Himari will soon be released from hospital when the magic hat posesses Himari again for another Survival Strategy meet…

Tabuki reminisces about how he injured his own hands in despair of being relenquished by her mother as she only cared about his younger brother who was a much better pianist than him. After Tabuki tra…

After the incident at the construction site, Tabuki quit his job and leaves Yuri, while Kanba is praised by his parents for protecting Himari, claiming that once their true objective is reached, they …

Masako decides to leave the Takakuras alone, still not accepting the 'family' they have. As Himari has another conversation with Sanetoshi, Shouma confesses to Ringo that Himari is not actually his bl…

Ringo is approached by a journalist asking about the Takakura siblings, but she avoids him and warns Himari about him. Later that night, Himari, who was told by the same journalist about how Kanba hav…

Ringo stumbles on two girls dressed suspiciously standing before the Takakuras' house and finds that they are actually Himari's childhood friends Hibari and Hikari from the Double-H idol duo. They ask…

On the day of the terrorist attack, 16 years before, Sanetoshi is contronted by Momoka who was determined to stop him and while her spirit ends up split in two with each half becoming the penguin hats…

Shouma tries to dissuade Kanba with no success while Ringo also boards the train, claiming she had learned from the present she got from Himari's friends the secret spell contained into the now lost d…