Member color: Peach Hip Pink Okazaki. Famous as an actor. He has a strong love for M!LK and always introduces himself as "M!LK's Hayato Sano" even when appearing in acting roles. A reliable older brother figure. From Aichi Prefecture. The oldest member. He is a hardcore fan of Guest, collecting all their merch. He turns into a total fanboy whenever they meet.

Member color: Sapphire Blue. Energetic and funny. Has a distinctive and cute singing voice. From Wakayama Prefecture. He is a hardcore fan of Guest, collecting all their merch. He turns into a total fanboy whenever they meet.

Member color: Happy Red. Very brilliant, having graduated from Gakushuin University and earned various certifications. He has a big puppy-dog vibe, but is such a "swamp man" that he has many fans who are genuinely in love with him! He is a hardcore fan of Guest, collecting all their merch. He turns into a total fanboy whenever they meet.

Member color: Crystal White. Possesses a face so handsome he ranked 1st in the National Treasure Class Handsome rankings, but has a surprising gap in personality where he's unexpectedly funny. M!LK's fashion leader. From Tochigi Prefecture. He is a hardcore fan of Guest, collecting all their merch. He turns into a total fanboy whenever they meet.

Member color: Sparkling Yellow. The leader. A tsundere who is actually a closeted "princess"! Skilled at both dancing and singing. From Kagoshima Prefecture. He is a hardcore fan of Guest, collecting all their merch. He turns into a total fanboy whenever they meet.