After years of being abroad from Paris, Matsubara Akemi has finally came back to Japan. And to her luck, she has been enrolled to the same school as her childhood friends, whom she haven't seen in a very long time. Wait, there's someone missing. During their meeting, she suddenly remembered a promise she made before with that person. To fulfill that promise, realizing her feelings have to came in first. (DISCLAIMER: I do not own Free! ISC or Free! ES)