Su-ho and Hyeon-seo, who once dated for six years, meet again as a youthful rich CEO and a piano instructor. K works with Su-ho on a collaborative project and invites Hyeon-seo to join them. Su-ho and Hyeon-seo embark on a bumpy romantic journey full of twists and turns. Will history repeat itself?

High schooler Yeo Eui-ju secretly writes web novels by night. When four charming new teachers arrive, they inspire her stories and shake up her school.

At a private school, a close group of friends is all hopelessly in love with the bright, popular student Sun-ah. Jin-woo claims he's the only one who doesn't share their feelings, but he eventually falls for her as well.