Hamaji Yakumo attends the same rural junior high school as protagonist Takuma Hirose. Presenting with consistently feminine appearance, voice, and mannerisms despite being male, Hamaji has cross-dressed since childhood, favoring items like pleated skirts, ribbons, puffy sleeves, and pantyhose. This identity receives broad acceptance in their conservative village, where Hamaji is well-liked and encounters minimal discrimination. Physically, Hamaji stands 155 cm tall with a slim build and pale complexion, sporting waist-length grey wavy hair featuring spiky bangs and antenna-like strands alongside brown drooping eyes. This appearance often prompts initial gender assumptions. Hamaji's family operates the village's sole convenience store. Assisting there regularly, Hamaji wears an official maid uniform as standard work attire. The family includes a younger sister named Yukiji. Personality radiates optimism, carefree humor, and friendliness, cementing Hamaji's popularity. The character uses "watashi" in a feminine speech pattern, frequently plays innocent, and directs lighthearted pranks or jokes at friends—typically forgiven due to their good-natured intent. This accepting disposition extends to class outcast Hayami Kohinata; unlike other villagers, Hamaji avoids participating in bullying and maintains restrained indifference instead. Within the original visual novel, Hamaji primarily provides comic relief through humorous interactions and situational jokes. The sequel Root After and Another substantially expands the character's role and development, granting deeper narrative focus.