Possesses multiple abilities, making her attack methods diverse. Wears a limp, distorted witch's hat. Gender is unknown. No matter how much damage is dealt, she regenerates infinitely through super-regeneration. Suddenly appeared in Gensokyo. Participating in the Scarlet Front. It is likely impossible to kill her without dealing near-infinite damage...

Commonly known as the Demon Lord. Capable of manipulating fate, rewriting the destinies of people and events to lead them toward a beautiful destruction. Participating in the Scarlet Front. The demonic spear Gungnir can destroy all inorganic and organic matter. Suddenly appeared in Gensokyo. Has bandages wrapped around her eyes and black wings growing from her back. Gender: Unknown.

Resembles a mannequin monster with countless hands and multiple faces on her back. A full-body lethal poison doll who attacks primarily using toxins, including poison needles, gas, medicine, and claws. Suddenly appeared in Gensokyo. Participating in the Scarlet Front. Gender is unknown. Her poison is extremely lethal; if the victim were anyone other than Yuuka Kazami, they would surely have died...

Equipped with machine guns, cannons, and laser rifles on her right hand. Gender is unknown. Her ability is called 'Complete Sleep,' which allows her to dominate the five senses. She kidnaps Kaguya Houraisan. Apparently, she can speak Japanese (to an extent). Suddenly appeared in Gensokyo. Participating in the Scarlet Front.

An ordinary magician and a woman. Wears a witch's hat. A resident of Gensokyo. Arrives at the Scarlet Devil Mansion and gets caught up in the Scarlet Front...

Supposedly a puppeteer, but she has already used up all her dolls in battle... A resident of Gensokyo and a woman. She fled and reached the lake where the Scarlet Devil Mansion is visible...

The mistress of the Garden of the Sun. A woman. Often carries a parasol and can fire a Master Spark from it. A resident of Gensokyo. Comes to the Scarlet Devil Mansion and joins the Scarlet Front...

A resident of the Bamboo Forest of Lost, but she has come to the Scarlet Devil Mansion. A woman. Immortal. A resident of Gensokyo. Kaguya Houraisan is her rival. She arrives at the Scarlet Devil Mansion and joins the Scarlet Front...

A resident of the Bamboo Forest of Lost who follows Fujiwara no Mokou. A woman with rabbit ears. Can invoke good luck. Participating in the Scarlet Front.

The mistress of Eientei and a woman. Kidnapped by Aberrant Reisen. Immortal. Rival to Fujiwara no Mokou.