Nagatoshi Hioki, a 28-year-old scenario writer for the eroge company Blue March, has maintained ties to the Aoyagi family since Kanna Aoyagi’s birth. His career emerged from a shift between avidly consuming adult game narratives to crafting them, channeling his literary passion into scripting immersive stories. Calm and methodical, he provides steadfast guidance to Kanna as she navigates her nascent voice-acting career, coaching her through nuanced vocal techniques and emotionally charged performances required for erotic game roles. Their professional rapport, however, is shadowed by Kanna’s unspoken romantic feelings, introducing subtle tension beneath their collaborative exchanges.

During a recording session where Kanna adopts a maid character, she accidentally addresses him as “master,” a slip underscoring the permeable boundary between scripted roles and their personal familiarity. Nagatoshi, ever composed, deflects such moments with a brotherly detachment, prioritizing her growth and stability in an industry rife with pressure. His allegiance to the Aoyagis runs deep, rooted in an understanding of their financial hardships following her father’s death—a loyalty that fuels his dedication to both Kanna’s unconventional path and her mother Yayoi’s company.

As Blue March’s narrative architect, he bridges creative intent and technical execution, meticulously aligning scripts with vocal delivery to elevate game immersion. While his personal history remains unexplored, his influence on Kanna’s evolution—marked by collaborative intensity and quiet emotional undercurrents—cements his role as both mentor and inadvertent catalyst in her journey.