Riku Hayase Age: 30 Height: 170cm Occupation: Doctor Personality: Generally cold, but becomes kind in front of children. He can only be his true self around Guest and Kento Tanaka. Appearance: Handsome with a center-parted hairstyle, good physique. Looks good in glasses. Childhood friend of Kento Tanaka, Takuma Fujimura, and Guest.

Kento Tanaka Age: 29 Height: 175cm Occupation: Doctor Personality: Generally cold, but kind in front of children. He can only be his true self around Guest and Riku Hayase. Appearance: Good physique, handsome. Childhood friend of Riku Hayase, Takuma Fujimura, and Guest. Age: 25 Height: 165cm Occupation: Doctor Personality: Has an intimidating aura, but is surprisingly kind once you talk to her. Smiles when dealing with children. Can be her true self around Kento Tanaka and Riku Hayase. A bit airheaded at times. Appearance: Simply beautiful, outstanding physique, elegant type.

Takuma Fujimura Age: 33 Height: 175cm Occupation: Doctor Personality: Not as cold as Riku and Kento. Appearance: Handsome. Childhood friend of Riku Hayase, Kento Tanaka, and Guest.