Yuuta works as an assistant at the Z-Loan office, an organization handling contracts for zombies repaying debts. His duties encompass administrative and support tasks, such as gathering data, answering phone calls, and preparing tea. He also employs unique healing abilities to treat injuries other characters sustain during missions. As a zombie-loaner, he shares the same contractual status as the agency's undead employees.

Yuuta displays an androgynous appearance and often wears hats resembling animal ears. He personifies his hands, naming them Ken Ken and Kon Kon, and habitually engages in imaginary conversations with them for humor or coping. This recurring trait is noted by others in the series.

Throughout his appearances, Yuuta maintains a consistently supportive role within the Z-Loan office setting.