Ryouko, a former female teacher, had always approached her students with dedication and compassion. However, she was forced to leave her teaching position after being assaulted by a student's parent at her previous school. Six months have passed since then, and she now lives as a full-time housewife, trying to accept that incident as part of her past. One day, she receives an unexpected phone call from a former colleague—an English teacher—and her life takes an unexpected turn. As warmth and kindness still radiate from her appearance, new emotions begin to stir deep within her heart, where old wounds still linger.