After their parents’ passing, nineteen-year-old Elena Wolfe drops out of school and works at an auto repair shop to raise her sixteen-year-old sister Iris. Trapped by overwhelming fear of loss, Elena wraps Iris in suffocating protection, developing extreme possessiveness disguised as care. Yearning for freedom and an independent life, Iris struggles under relentless surveillance and control. Tensions repeatedly erupt between them, torn between deep affection and invisible shackles. As Iris gains an opportunity to attend university far away, the fragile balance collapses. Through countless conflicts, misunderstandings and painful reflections, Elena gradually learns to loosen her grip. Finally, the two walk toward reconciliation, figuring out how to love each other without erasing one another’s individuality.
