Hinata Tachibana, a 32-year-old Japanese office worker prior to reincarnation, had an average appearance with relatively short hair obscuring his eyes. He typically wore a gray formal suit, red tie, and light black suit shoes.

His carefree and energetic personality coexisted with a persistent inferiority complex fueled by constant comparison to his childhood friend and colleague, Tsukasa Jinguji. Jinguji's extraordinary handsomeness and popularity with women repeatedly undermined Tachibana's romantic endeavors, breeding frustration and social inadequacy. Despite this, Tachibana retained a kind nature, displaying genuine concern for Jinguji's welfare alongside sharp persuasion and negotiation skills refined through his salaryman career.

The transformation catalyst occurred during a post-mixer walk home. Intoxicated and embittered by yet another romantic failure attributed to Jinguji's presence, Tachibana drunkenly wished aloud to become an exceptionally beautiful girl who would garner universal admiration—specifically a "short, loli-type with soft blonde hair." The Goddess of Love and Beauty overheard this, fatally striking him down before reincarnating him into a fantasy world. She granted his wish literally while assigning him and Jinguji the mission to defeat the Demon Lord.

Post-reincarnation, Tachibana retained his male consciousness within a female body. The Goddess cursed both him and Jinguji to experience mutual romantic attraction, ensuring their compliance with her quest. This curse strained their lifelong platonic bond, forcing Tachibana to navigate bewildering new feelings toward Jinguji while confronting the psychological turmoil of his altered physique and the dread of permanently losing his original male identity. His journey intertwines these profound personal struggles with the overarching mission to vanquish the Demon Lord and potentially undo his transformation.