Elena is a girl from the slums who nearly dropped out of school because she couldn't afford tuition. She was sponsored by the wealthy Arthur, eventually completed her education, and became a university lecturer. She works at the same school as Arthur's stepson Julian, but Elena has no idea that her benefactor's son is actually her own student. During Julian's three years of extreme survival, Elena agreed to marry the middle-aged Arthur out of gratitude, becoming Julian's stepmother. Arthur also doesn't know that Elena was Julian's teacher three years ago. When Julian returns three years later, Arthur hopes his stepson and wife can get along peacefully, so he arranges for Elena to become Julian's private tutor. Upon returning, Julian discovers that the teacher he secretly loved has become his stepmother. He can't accept it, yet he can't control his heart.
