One, tome 1

Eumpa Won (One) is an awkward, quiet music student and former child prodigy who is now determined to lead his life as a normal guy. Destiny throws him a curve as he finds himself caught up in an unlikely love triangle. Enter Jenny, the highly acclaimed singer, and Young-Ju, the plain Jane. These seemingly opposite personalities are drawn together by two common bonds ... Their passion for music and their search for true self-identity.