Hassaku Hozumi serves as an animator at Studio Petit, where he is among the first colleagues Mikiko Oguro meets after joining the studio. His typical arrival around noon mirrors the irregular hours common in animation work. Daily present in the office, he contributes to studio operations while facing schedule adherence challenges alongside fellow animators. A hat consistently completes his appearance. Hassaku continues animating through subsequent projects, including periods when the studio juggles multiple anime productions under pressure. His responsibilities include crafting key frames for series like "Time Journeys." He persists within the core team tackling deadlines and production demands, spanning initial workloads and later intensified schedules.