Heli always thought that he was just a dispensable pedestrian in other people's lives. After her parents divorced, she became depressed, afraid of the dark, afraid of loving and being loved. A transfer of schools became a turning point in her life. The estrangement between her parents and her sister seemed to have quietly begun to change. At the same time, in addition to having friends, her "two-faced" "brother" and "weird" seniors also made her grow up...