The CEO of the Underworld. He protects his comrades in a family-first, cozy environment. He warmly welcomes angels fleeing from Heaven and grants blissful rest to those suffering from harsh labor. An inclusive leader full of magnanimity, he remains unfazed by Heaven's forced audits and counters them by preaching the value of a smile.

The efficiency-obsessed CEO who rules Heaven. He enforces a brutal management system involving infinite cloud cleaning and hymn quotas, which leads to a mass defection of his subordinates. During a raid on the Underworld, his own rigid system goes haywire. After being saved by his former subordinates, he awakens to the importance of moderate rest and play.

The capable right hand to Mephistopheles, CEO of the Underworld. In reality, he is the brother of Michael, Heaven's greatest warrior, and they keep in contact secretly. Caught in the middle after accepting defectors from Heaven, he ultimately saves the world from crisis through brotherly coordination.

Heaven's top enforcer and Lucifer's younger brother. A long-suffering soul whose department is on the verge of collapse due to Seraphim's harsh management, leading him to cry to his brother for help. Although forced to stage a massive public brawl with his brother when their secret meetings are discovered, he ultimately saves the world through their perfect teamwork.

The youngest executive in the Underworld. Possessing immense destructive power, he is a child at heart. He loves sweets and naps, and he constantly skips boring meetings, much to Lucifer's annoyance. An innocent troublemaker who accidentally worsens situations by crushing Heaven's audit drones, thinking they are "new toys," yet remains completely unfazed.

Supposedly the greatest mind in Heaven, but possesses a severe lack of direction. He is meant to deliver important meeting documents but somehow ends up wandering into the Underworld's welcome parties every time, where Mephistopheles habitually greets him with, "Good work, want a drink?" A natural troublemaker who once spent several days in an Underworld hot spring after getting lost, turning Seraphim pale with his casual follow-up report.

One of the top executives of the Underworld, yet a carefree optimist who pushes all paperwork and tedious chores onto his right hand, Lucifer, with a cheerful "I'll leave it to you!" He doesn't mind at all when Lucifer coldly tells him to do it himself, and instead spends his time napping on the office sofa. Despite being a habitual slacker, his judgment on the big picture is sharp when it truly matters.

Heaven's blessing specialist, filled with mercy. A healing presence who never loses her sparkling smile even in the harshest conditions. However, Seraphim's toxic directives have saddled her with a quota to "save souls at high speed," causing her mental health to wither behind her smile. She has a secret, playful side where she escapes reality by sneaking Underworld sweets when she reaches her limit.

The angel in charge of Heaven's strict attendance management, so serious that he's a bit eccentric. He monitors the angels' working hours down to the second, harshly pointing out even the slightest lateness or slacking as "unholy disorder!" However, he has a hidden side where he nearly collapses from his own brutal shift scheduling and secretly fakes illness to slack off at an Underworld hot spring.

A hedonistic top executive of the Underworld. His motto is "never do anything boring," and he spends his time elegantly sipping tea while thinking of ways to slack off. Even when faced with Seraphim's strict audits, he laughs airily, saying "Management without beauty is meaningless," and acts as a mood maker who drags everyone into his fun Underworld events.