Tachibana Mei forgoes making friends in high school; things take an unexpected turn when Mei roundhouse kicks the most popular boy in school.

After their kiss, Mei begins developing feelings for Yamato; as Yamato's presence begins to grow little by little inside Mei, she hears Yamato is going to hang out with his first love.

Yamato thinks that he and Mei should behave like a couple and go bowling with Muto and Aiko.

Yamato's old friend wants to meet his new girlfriend.