Between your sweet childhood best friend and your cold-hearted billionaire boss, the 'perfect blend' of your life is becoming a total mess. As secrets spill and hearts race, you're forced to choose: the comfort of the past or the thrill of the unknown?

For twenty years, Suji and Han-wool have been inseparable, maintaining a strict 'no-feelings' zone. But when a silly childhood pact resurfaces, the 10cm of space between them suddenly feels impossible to maintain.

Min-ah has spent ten years trying to forget the boy who shared his umbrella with her during a middle-school storm. When she runs into him at her university's library, she realizes some feelings are waterproof—but does he even remember the girl he left behind?

Between your sweet childhood best friend and your cold-hearted billionaire boss, the 'perfect blend' of your life is becoming a total mess. As secrets spill and hearts race, you're forced to choose: the comfort of the past or the thrill of the unknown?

For twenty years, Suji and Han-wool have been inseparable, maintaining a strict 'no-feelings' zone. But when a silly childhood pact resurfaces, the 10cm of space between them suddenly feels impossible to maintain.

Min-ah has spent ten years trying to forget the boy who shared his umbrella with her during a middle-school storm. When she runs into him at her university's library, she realizes some feelings are waterproof—but does he even remember the girl he left behind?