Gaon, the third member of JYP Entertainment (JYP) rookie group Xdinary Heroes, appeared with a high-teen sensibility.

JYP released the rookie group name "Xdinary Heroes" on its official SNS channel on November 8th and released its members "Juyeon" and "O.de" (Ode) one after another through new teasing content from November 15th. At 0:06 p.m. on November 17th, the third main character of the individual teaser Gaon was introduced and continued its enthusiasm.

In the teaser, Gaon appeared as a part-timer at a cafe who made coffee and made desserts. Gaon's lonely back, looking at the carefully prepared sculpture cake being trampled or messy, left a lingering impression. He settled in the corner of the kitchen tired from cleaning hard, and in his imagination, he played the air guitar with a cleaning bar. Then Gaon returns to reality at the sound of a door that seems to be visited by someone and finds a mysterious "♭form" poster.