Ji-soo is the breadwinner of her family and her son works part-time, unlike in her affluent past when she majored in piano. While living so busy, she learns shattering news from her son's school.

Ji-soo was the girl who knew how to be so straightforward towards Jae-hyun after falling in love at first sight in 1993. Now, Jae-hyun is worried about Ji-soo, who doesn't seem as energetic as before...

In the end, Jae-hyun brings up conflicts with his wife, Seo-kyung, to prevent her from organizing a committee against school violence. Ji-soo feels estranged from Jae-hyun who was her world and her faith.

Jae-hyun decides to make a deal with Chairman Jang after being surprised by Ji-soo's arrest. Meanwhile, in 1994, Ji-soo is released after being arrested for protesting with the help of her father.

Ji-soo and Jae-hyun are caught in a whirlwind of emotions. Then, they keep meeting. Jae-hyun discovers that he is under surveillance. Meanwhile, in 1994, Jae-hyun and Ji-soo spend a dream trip to the sea.

Jae-hyun goes to meet Ji-soo after sneaking out of surveillance. However, Se-hoon puts more pressure on Ji-soo with Jae-hyun and Young-min's school problems. Meanwhile, in 1995, Jae-hyun and Ji-soo lie for each other.