Kuki Genjo serves as a Honey to Sakuragi Nayuta within Houjou Academy's hierarchical system, assisting his wealthy Master. His long blue hair, kept in a ponytail, holds deep personal meaning; he preserves it untrimmed because it contains strands once touched by Nayuta. This attachment prevents him from tying his hair effectively himself, leading Nayuta to perform this task for him regularly. He also carefully safeguards a hair band gifted by Nayuta years prior.

His unwavering loyalty to Nayuta began in their childhood, originating in kindergarten when he first became Nayuta's Honey. During that time, he comforted Nayuta by letting him play with his hair, a gesture that calmed Nayuta during distress. This established a dynamic of absolute dedication, with Genjo vowing lifelong service to his master.

Within the narrative, Genjo functions as a secondary support figure, particularly offering practical guidance to the protagonist Yuzuru on navigating her duties as a Honey, drawing from his own experience and competence. His demeanor is typically composed and intelligent, contributing to his effectiveness as Nayuta's partner. His role remains consistently defined by this devotion to Nayuta and his ancillary mentorship of Yuzuru. Physical descriptors include his blue hair, blue eyes, and his occasional use of glasses.