Atsuki is a boy who lost his grandmother after being abandoned by his mother... It was my uncle, Yu, who took my hand, which no one had picked up. He also lost his wife Tsukiko and lives alone in the countryside. Atsuki does a favor for Yu, who takes good care of him. However, at that moment, Yu drunkenly kissed Atsuki by mistake... "I can replace her, just love me" 「代わりでもいい、僕を愛して」母に捨てられ、祖母を亡くした少年・あつき。引き取り手のなかった彼の手をとってくれたのは、叔父・優。彼も妻の月子を亡くしており、田舎で２人だけの生活。自分を大切にしてくれる優に、あつきは好意をよせていく。しかしそんな時、酔った優に月子と間違ってキスをされ――…妻を失った40歳　×　母を失った15歳 美しき片田舎の切ない年の差恋愛