After missing out on love because she was too shy to confess her feelings, high school student Satomi blurts out how she feels the next time she gets a crush--and it's to her impossibly handsome schoolmate Yagyu! To her surprise, he agrees to date her. Now that Satomi's suddenly in a relationship, what next?

The four friends depart on a school trip to Nagasaki together. Satomi and Yagyu start thinking about their lives after high school, as do Miria and Noda. What does the future hold for these two couples who have found their fated loves in high school?