Miku Hatsune

While primarily known worldwide as a famous virtual idol, Miku Hatsune seamlessly blends into the chaotic and bizarre everyday life of demons and humans in the third season of this anime. She can often be spotted carrying her signature leek, casually humming songs in random locations—whether she is running errands, stomping grapes, or even appearing as a child student in a Hell elementary school. Her constant presence adds lighthearted, comedic Easter eggs to the show while perfectly aligning with the season's hometown tax collaboration to promote local tourism in Hokkaido. No matter how absurd or violently comedic the situations around her get, she remains blissfully unfazed, always maintaining her own joyful and easygoing rhythm.