On a hill in a wealthy residential neighbourhood, with kind parents and plenty of good friends, the cheerful girl Kahoko, nicknamed "Kako," lives happily. One... more>> day, due to the sudden death of her father, that life completely changes. A beautiful girl named Naoko moves into Kako's old house, and Kako's heart is filled with trouble. Naoko lives with a little secret that she doesn't want anybody to know. But Kako stumbles onto Naoko's secret by accident, and afraid that Naoko might steal the heart of Kako's first-love Noboru. So Kako, in front of Noboru... tries to reveal Naoko's secret... This is the story of how a girl grows up, surprised and perplexed, with budding jealousy and envy in a complex struggle of the heart. <<less