At a night school, teacher Miko is deeply trusted by her students, each with their own personal struggles. One day, she encounters a troubled boy on the verge of giving up—Kanta, the younger brother of one of her former students. Determined to help him restart his life, Miko enrolls him in her school and becomes a supportive presence, guiding him with compassion. As she draws closer to understanding his pain, their bond deepens, giving rise to an unexpected and intimate connection.