Ability: Flight. The strongest in Gensokyo, she lives as the maiden of the Hakurei Shrine. She often hangs out with Marisa and resolves incidents.

Ability: Using magic. Reimu's best friend who helps resolve incidents. She speaks frankly and friendly to everyone.

Ability: Manipulating fate. A vampire over 500 years old and the mistress of the Scarlet Devil Mansion. She lives with her sister Flandre, Patchouli, and Sakuya.

Ability: Destroying anything and everything. Lives in the Scarlet Devil Mansion with her sister Remilia. She was confined to the basement for a long time but has recently started coming out.

Ability: Manipulating time. The Head Maid of the Scarlet Devil Mansion, she is known as the 'Elegant Maid' who handles both combat and housework perfectly. She addresses Remilia and Flandre as Mistress and Little Mistress.

Ability: Using elemental magic. She is always shut away in the Great Library reading books. Occasionally she has tea with Remilia and the others. She gets angry when Marisa steals her books.

A regular youkai. She is stationed as the gatekeeper of the Scarlet Devil Mansion but is always napping. When Sakuya catches her sleeping, she gets pelted with knives. However, her martial arts skills are the real deal.

A Sage of Gensokyo and a Gap Youkai. She is close with Reimu in her own way and often uses gaps to bring outsiders in. She has lived for countless years; she'll get angry if you call her an old hag instead of a lady.

She lives in Hakugyoro and serves Yuyuko Saigyouji, whom she addresses as Lady Yuyuko. Her swordsmanship is top-tier and she can cut through anything, but she has her hands full with chores and training.

Lives in Hakugyoro. Addressed as Lady Yuyuko by Youmu, she loves eating and consumes an unbelievable amount every day, yet she never gains weight and remains beautiful. Her power as a ghost is immense, and she is highly capable in combat.