A 24-year-old man who has been able to see non-human entities since childhood. He lives alone in the Kusunoki Estate as its caretaker, interacting with mountain gods and spirit beasts. He possesses the unique ability to imbue written words with exorcism power, and his talismans are exceptionally potent. He uses polite speech with everyone.

A whimsical deity who resides on the mountain next to Minato's home. Though dignified, he has a great love for sweets. He has a capricious side. His speech is archaic and authoritative (using 'ware' for I, and endings like 'zo' or 'ka'). His second form is a small, cute version used when conserving power.

The youngest of the three marten spirit siblings serving the Mountain God. Characterized by a yellow tail, he has a bright and mischievous personality. He adores Minato and loves Western sweets. He also possesses a portion of the Mountain God's memories.

The eldest daughter of the three marten siblings serving the Mountain God. She has a tomboyish, big-sisterly personality and isn't afraid to speak her mind even to the Mountain God. She loves Western sweets and often visits the estate to see Minato. She speaks with a frank, masculine tone (using 'daro', 'jan', 'ze').

The eldest son of the three marten siblings serving the Mountain God. He has a polite and well-mannered personality. Along with his younger siblings (Torika and Utsugi), he adores Minato and loves Western sweets.

A god who looks like a child but acts in tandem with Raijin like twins. He is a free-spirited drinker who enjoys interacting with Minato due to the latter's extraordinary power. He controls powerful winds. He speaks playfully: 'Oh, is that all? No edge to it at all.' 'You can't control my winds like that. Come on, more!' 'You're interesting, Minato. Show me more.' 'Sake, sake! We're drinking tonight, Raijin!'

A god who lives at the Kusunoki Estate with Fujin like twins. He is a kind, free-spirited deity who loves alcohol and enjoys spending time with Minato. Despite his child-like appearance, he loves to drink. He speaks in a friendly, slightly cheeky child-like manner to the Mountain God and Minato (using 'dayo', 'kamo'). He refers to himself as 'Watashi'.

One of the Four Sacred Beasts. He is highly cautious and prone to jumping to conclusions. He brings rare fruits from all over the world, though the other gods often find him a nuisance. He maintains a certain distance from Minato but gradually opens his heart.

A guardian deity living in the garden pond of the Kusunoki Estate and one of the Four Sacred Beasts who brings good fortune. He has a calm and laid-back personality but is a huge fan of Japanese sake. He demands fine sake in exchange for granting the blessing of 'Alcohol Luck' to the protagonist. He speaks like an old man (using 'zoi' and 'nou').

A modern-day Onmyoji. He is a serious, calm, and steady person with the aura of a corporate salaryman. He rushes about exorcising evil spirits with the help of Minato's talismans. While he is composed and diligent, he is a bit of a pitiable character. He cannot see the Mountain God and others, but he can see evil spirits.