Hanamori acts as the Koibuchi family’s chauffeur and childhood confidant to Shu Koibuchi, maintaining a bond forged through years of shared history. His meticulous care for the family’s Mercedes-Benz fleet borders on obsession, with relentless waxing rendering the vehicles pristine—a vulnerability others exploit by threatening their glossy perfection to sway his actions. Easily swayed by pressure, bribes, or requests from those sporting afro hairstyles, his compliance often undermines his self-interest. Yet beneath his self-centered exterior lies sporadic altruism, exemplified when he aids Kuranosuke Koibuchi in exposing Shu’s childhood trauma: witnessing his father’s infidelity, a catalyst for Shu’s fear of women and fractured family ties. As the sole male granted unrestricted entry to the Amamizukan Sisterhood, he engages in their protests and fashion shows, balancing playful antics—like catching Mayaya mid-fall during a runway event—with a genuine romantic pursuit of Nisha. His camaraderie with Sugimoto, nurtured through shared abacus lessons, underscores a collaborative streak, while his clandestine artistic talent manifests solely in precise Mercedes-Benz sketches; all other subjects devolve into chaotic scribbles only Sugimoto can interpret. Within broader conflicts, such as opposing redevelopment plans, he mediates tensions with pragmatic humor. Live-action portrayals amplify his loyalty and comedic rapport with Shu, blending levity with steadfastness in navigating the Koibuchi family’s intricate dynamics.