Teasing Kiss
Having missed the entrance exams for Tokyo University, Naoki decides to go with the school's escalator system. Graduation day's rolled round and soon after that, the F and A classes bump into each other during their farewell dinners. An exchange of heated words soon ensues where Naoki puts Kotoko down in front of everyone, upsetting her greatly and forcing her to do something drastic - which in turn yields an unexpected outcome.
Aired 15/05/2008EP 7 - Teasing Kiss

ItaKiss
Ever since she entered high school, Kotoko Aihara wanted to be in the same class as Naoki Irie. The only problem is that Irie is the smartest student in school in contrast to Kotoko being one of the dumbest. Now in her 3rd year of high school, she still isn't there. However, one day her home gets destroyed and the only place left to go to is Irie's home. Now that she lives close to him, will their relationship be the same, or will it become greater than it is?