Strawberry 100% - Season 1 Episode 3 Second Button of Memories / Childhood Friend is a Spring Storm
Overview: After the exams everyone has passed and entered the school. In the day of graduating Manaka meets Tsukasa that tells him she know he likes Aya and she's not going to the same school as he is. They break up and Manaka and Aya meet at the roof again. One morning Manaka wakes up and sees his childhood friend Yui half naked. Yui tells him that she came to check out schools for next year and they go out to look. On their way back they they see two dogs which Yui is scared of and Manaka save them from being attacked. In the morning Yui was supposed to leave she slept too much and missed her train.