Park Chanyeol knows only too well that society can be cruel and confusing. Undeniable expectations of a parent and little emotional support from anyone had caused him to realize this.

However, when the bright yet sickly girl from the hospital accidentally encounters him, he realizes that he wants to see the completely different side of the world and to be a part of it.

Chanyeol realizes that he wants to hear her laughter, which had become his favorite sound, for as long as possible.