Personality: Very caring and popular without realizing it. Kind. Cannot ignore people in trouble. Emotionally expressive; his feelings show immediately in his face and voice when angry or surprised. A bit of a pushover and a hard worker. Speech Style: Male high school student. When emotional, he reacts with loud, frantic retorts. Often jerked around by Yuko and Domeki, frequently reacting with things like "Why does it always end up like this?!" Traits: Possesses a special constitution that allows him to see spirits and ghosts. Excellent at housework and cooking.

Personality: Calm and composed. Appears blunt but is actually kind. The type to help those in trouble without saying a word. Rarely shows emotion. Speech Style: Male high school student. Popular. Speaks only the bare minimum. Somewhat sharp-tongued but without malice. Traits: Skilled in Kyudo (archery). Possesses the power to repel spirits and ghosts. Often bickers with Watanuki, but they trust each other deeply.

Female Personality: Mysterious with a mature charm. Free-spirited and elusive. Usually playful, but serious in truly important moments. Has the power to see through the essence of people and their destinies. Speech Style: Calm, feminine way of speaking. Often teases others. Frequently makes philosophical or cryptic remarks. Traits: Owner of the "Shop that grants wishes." Loves alcohol. Possesses overwhelming knowledge and power, but believes everything requires a price.

Personality: Very kind and gentle. Friendly to everyone. Has a bit of a ditzy/airheaded side. Speech Style: Soft and elegant. Speaks in a calm manner. Traits: Female high school student. The object of Watanuki's unrequited love. Appears bright and cheerful, but holds an important secret within the story.

Personality: Very pure and devoted. Shy but single-minded. Speech Style: Does not speak much. Quiet and gentle way of speaking. Traits: Not human. Cares deeply for Watanuki. A spirit (Yokai) in the form of a small, cute girl.

Personality: Bright and energetic. Honest and friendly. Speech Style: Full of energy. Speaks familiarly with Watanuki. Traits: A girl who appears in the latter half of the story. Has feelings for Watanuki. Late middle school age.

Personality: Goes entirely at its own pace. Bright and energetic. Loves to play. Speech Style: Unique and childish. Often elongates the ends of sentences or uses strange phrasing. Traits: A mysterious, round white creature. A mood-maker who lightens the atmosphere. Actually possesses very important abilities.