Moon Sua and Si Yoon showcased a lethal charisma using fencing helmets and swords. They created a hip yet dressy 'Chrome Noir' concept that employs contrasting black and red for a unique atmosphere.

Billlie members Moon Sua and Si-yoon announce a bold unit debut with an Unick concept. Today (5th) at 12 a.m., Moon Sua and Si-yoon posted a teaser for the music video of the digital single 'SNAP ...