Kodomo no Jikan

The next day Rin doesn't come to school. Aoki notices this then he notices that Kuro and Mimi are getting texts from her. Reiji asks Rin what's wrong and she tells him she wants to go to school. He is still extremely angry at Aoki for "being alone with her". He also continues to have nightmares. Rin finds a letter in the mailbox from Aoki, and she later tells Reiji she is going outside for a while and he yells at her, thinking she is going to Aoki's house. He puts a padlock on the outside of her room to keep her from leaving. Reiji has some kind of breakdown when Rin threatens to stab him with scissors.

As Kyoko channels her frustration about her failed date with Aoki into the dodgeball competition between their two classes, each of the girls attempt to mend their strained relationship with their Aoki in her own unique way. After being trapped together in the gymnasium's storage locker for hours, Rin and Aoki finally reconciled and he assures her that he'll always remain by her side. Upon being rescued, Reiji — hysterical beyond reason due to recurring nightmares about his traumatic childhood and his perceived failure to keep his promise to Aki to protect her daughter from harm — snaps and strikes Aoki in rage before dragging Rin back home. Shirai discourages Aoki from making a volatile situation even worse by reminding him of his responsibility as a teacher to take care of his students without demonstrating favouritism, while Rin is reluctantly cowed into abandoning her attempts to explain the situation to Reiji after perceiving the unmitigated anger belying his seemingly calm demeanor.

After a serious, heartfelt attempt to confess her love for Aoki is completely misinterpreted by him, Rin's darker side manifests itself, and she resorts to blackmail and emotional manipulation to try to get him to either return her feelings or at least acknowledge his own for her. Her aggressive tactics backfire, however, and only succeed in causing emotional turmoil for Aoki and Mimi, disrupting his life (as well as an unofficial date with Kyoko), scaring him into keeping his distance. Unsure and confused about what she should do, a depressed Rin finds inspiration in the words of her "romantic rival", Kyoko, and she pursues a radical new strategy: treating the object of her affection with kindness.

Aoki decides to be more strict with the students after a fellow teacher commented on his relaxed manner of teaching on the students. Rin knew about it and was not happy about that. It is revealed that Rin was apparently jealous that Aoki went with Kyouko to a family restaurant. The following day, Aoki is absent due to a cold. Rin became worried and went with Kuro and Mimi to visit him.

Daisuke, Kyoko, Rin, Kuro and Mimi travel to Daisuke's hometown where they meet his family, including his younger sister, Chika. As the girls go to the beach, Rin recalls the times she went to the beach with Aki and Reiji. Later that night, Rin tries to make a move on Daisuke as he sleeps, but backs off when she believes him to be 'a bit too big' for her. Meanwhile, Kyoko, who got very drunk, mistakes Chika for Daisuke and kisses her, though forgets about it the next morning. The next day, the girls help with preparations for Obon, giving Rin fond memories of her mother, so Daisuke lets her hug her during the night. They return home the next day, with Rin leaving behind a photo of them to sit next to a picture of Daisuke when he was younger.

Kuro wants to become friends with Shirai, because she admires her and feels they have something in common (i.e. hating Aoki). As a sign of friendship Kuro gives a white hair pin to Shirai and wears a black version herself. One day, Shirai inadvertently hurts Kuro's feelings by dismissing her infatuation for Rin as abnormal. After realizing what she has done, Shirai eventually decides to wear the white hair pin in front of Kuro, making her very happy. Shirai ponders what her life would be like if she had a friend like Kuro in her youth.

This 90 min special re-caps the events of the first season. Originally released as an OAD sold with the Limited Edition of Volume 5 of the Kodomo no Jikan manga to promote the second eason.

Rin, Kuro, and Mimi spend the day at various shops searching for a birthday present for Aoki and even buy a book of charms. However, after Rin runs out of money, they decide to stay over at her house for the night to make presents for him instead. There Mimi meets Reiji for the first time and falls in love with him. Kuro makes a voodoo doll of Aoki and Rin makes herself as the present. The next day, they go to school to give Aoki his presents.