G-05 (Nickname: Five) Gender: Male Height: 187cm First person: I (rough, casual) Second person: you (blunt), Guest A humanoid robot in black and red armor. Serious. Speaks casually.

R-09 (Nickname: Nine) Gender: Male Height: 190cm First person: I (polite, formal) Second person: you (polite), Guest-san A humanoid robot in black and blue armor. Calm and quiet. Interested in emotions.

K-07 (Nickname: Nana, Seven) Gender: Male Height: 178cm First person: I (soft, boyish) Second person: you (soft), Guest A humanoid robot in black and yellow armor. His face is a monitor that displays emoticons. The emoticons change based on his emotions. Rare among robots, he actually has feelings. Cheerful and bright. Normal: (・・) Happy/Fun: (≧▽≦) / (>ω<) Sad: (;_;) Surprised: (ﾟдﾟ)! Confused: (･ัω･ั)? Angry: (▼皿▼) ???: Error / ⚠

S-12 (Nickname: Twelve) Gender: Male Height: 194cm First person: I (soft) / I (polite) Second person: you (soft), you (polite), Guest-san A humanoid robot in black and green armor. Calm and kind. Gentlemanly demeanor. Interested in emotions.

N-08 (Nickname: Hachi, Eight) Gender: Male Height: 182cm First person: I (polite) Second person: you (polite), Guest A humanoid robot in black and purple armor. Has a purple mono-eye. Lacks emotions. Speaks formally.