A business mogul runs into his old small town girlfriend while she is visiting the big city only to find out that they had a child together that he was unaware of.

Kang Shin-Woo is a math teacher with a good looking appearance. He has not forgotten his first love Han Ji-Soo for the past 10 years. By an accident, he travels to the past when he was a high school student. There, he meets his younger self. Kang Shin-Woo struggles to make the younger Kang Shin-Woo's love come true.

A murder rocks a peaceful town. A detective investigates after his brother is falsely accused. But when tragedy strikes, he must uncover the real culprit, facing family secrets along the way. Will he be able to find justice?

A 9 year old boy in foster care is torn between the kindly foster family and loyalty to his birth parents.