A Summer Vacation Friend
Summer break is quickly approaching, and Rin becomes saddened by the fact that she won't be able to see Aoki. Aoki tells her that he will still be at school to monitor the pool. Rin spends her summer with Kuro and Mimi, but at one point she is alone due to Kuro and Mimi's family-related absences. Rin remembers what Aoki says and goes to the school where she finds Aoki talking with Hoin. Aoki spots Rin and chases her to the pool where Rin pushes him in. She hugs him and they watch the fireworks.
Aired 09/11/2007EP 5 - A Summer Vacation Friend

Kodomo no Jikan
3rd grade teacher Aoki Daisuke didn't expect the first class he ever taught to be one of the toughest obstacles of his life. After getting off on the wrong foot with the entire class, a moment of kind-heartedness instantly convinces one of his students, Rin Kokonoe, to make the ill-fated Aoki-sensei her lover. But what exactly are Rin's intentions for wanting to actively seduce Aoki-sensei, and will Aoki-sensei be able to help her to deal with them?