In the story, Soohyun, a fourth-grade teacher, is on the verge of getting married. One day, one of her students named Yohan approaches Soohyun during a moment of happiness and busyness. Yohan opens up to Soohyun about being a victim of domestic abuse. However, the next day, a web of lies orchestrated by John awaits Soohyun, throwing her into a dilemma.