Keita Maki is a 26-year-old male member of Revel, born on March 3rd. He stands 166cm tall with distinctive dark green hair and brown eyes. His surname, Maki (槇), translates to "twig" or "Chinese black pine," while his given name, Keita (慶太), meaning "congratulate/celebrate" and "thick/big/great," forms an ironic contrast to his profound insecurity about his height and youthful appearance.

As Revel's sole voice of common sense, Keita exhibits responsibility within the group. However, he struggles with a volatile temper, exploding in rage so easily that others keep their distance, wary of getting hurt during his outbursts. This sensitivity extends sharply to any mention of his stature or babyface features.

Keita fixates on his height, aspiring to reach 210cm. He consumes milk constantly, considering it both a hobby and dietary staple in pursuit of growth. This fixation shapes his food preferences, favoring milk pudding, ice cream, and milk stew. When confronted with hypotheticals about height changes, he reacts intensely: expressing hopeful disbelief at growing taller but declaring he would "jump out the window right away" if shrunk to 10cm. Despite his stature concerns, Keita possesses notable physical competence demonstrated through his judo skills.