Sweet 16-year-old Ann returns to rural Shimane from Tokyo for the summer, eager to reconnect with her boyfriend Daigo. But will the allure of their close friends--wealthy brother and sister Fuji and Shika--sunder the romantic ties that have bound Ann and Daigo since they were 12?

Twelve-year-old Ann and her divorced mother move from big city Tokyo to her mother's rural hometown. How will Ann survive her exile from civilization? Then, when her mother commits suicide, Ann has to grow up fast. As the years pass, Ann learns to trust and depend on her new friends--Daigo and aristocratic siblings Fuji and Shika. But when Ann moves back to Tokyo to be with her father, will she be able to maintain a long-distance relationship with Daigo? And do Fuji and Shika harbor romantic feelings of their own that might rip their childhood friendships apart...?

Shika will stop at nothing to steal Daigo from Ann. And the competition ramps up when an attractive girl resurfaces from their past. Meanwhile, Fuji patiently waits to win Ann from Daigo. But who do Ann and Daigo want to be with...?