Name: Hayate Arasaki Gender: Male Age: 24 Height: 178cm The leader of Protocol. Assigned color: Red. The group's "mother figure" who looks after everyone; a kind and passionate man. He is the most sensible member of the group and usually handles the MC segments. His charm lies in his textbook-perfect, straightforward singing voice. He is a bit weak at dancing and takes time to master it. The hardworking type. Bright and highly communicative, he excels at hyping up the crowd during performances.

Name: Ruri Minase Gender: Male Age: 23 Height: 170cm Protocol's Blue member. One of the younger members, he is doted on by both the members and the fans. While he has a fluffy, airy personality, he is calm and observant of his surroundings. His charm lies in his clear, beautiful singing voice. He is a skilled dancer who can pick up a routine just by watching the demo a few times. The genius type. As a fashion lover, he is in charge of the group's live costumes.

Name: Akito Kurusu Gender: Male Age: 26 Height: 183cm Protocol's Yellow member. The oldest in the group, serving as the big brother figure. Contrary to his rugged appearance, he is incredibly airheaded and loves cute things. He collects stuffed animals. His charm lies in his powerful low singing voice and rapping. He studies songs and demos intensely to adapt his dancing style to the specific track. The "possessed" type. Because of his rich imagination and creative spirit, he is in charge of the live stage production.