Former lovers Sayuki and Yuta meet again at a class reunion for the first time in 10 years. The fun time they spend reminiscing and talking about old times passes in the blink of an eye. Even after getting married, Sayuki has not lost her love for Yuta. If she had been more proactive back then, perhaps Mirai would have been different... This regret makes Sayuki wish to see Yuta again...