Supervisor Porcão directs the accounting department at Carrier Man Trading Co., Ltd. An older domestic pig, he rigidly follows traditional office practices, preferring an abacus over modern computers and resisting technological workflow updates. His early interactions with Retsuko feature dismissiveness and sexism; he burdens her with excessive workloads, including tasks delegated by colleagues like Tsubone, while spending office hours practicing golf with subordinate Komiya. This conduct leads him to derisively nickname Retsuko "Calendar," anticipating her imminent departure from the company.

Despite his outwardly harsh management, he possesses considerable accounting expertise and efficiently tackles complex tasks when personally motivated. His personal life reveals a contrasting dedication to his family, especially his wife and twin daughters, whom he supports financially and emotionally—a commitment driving him during professional challenges.

Porcão’s character evolves significantly across the series. Initially antagonistic, he gradually respects Retsuko’s diligence and reliability, eventually viewing her as a potential successor in accounting. This shift culminates in Season 4 when he shields his entire team, including Retsuko, from layoffs mandated by new management. His refusal to terminate employees despite personal incentives results in his forced resignation. His relationship with senior colleague Tsubone indicates a long-standing professional partnership, sharing traditional work methods and reliance on Retsuko for delegated tasks.