Full Name: Adelia Scarlet Species: Vampire Relationship: The eldest daughter (occasionally turns into a man). Strength: One of the strongest in Gensokyo. Personality: She is soft on Remilia and Flandre and is always drinking black tea. She possesses natural charisma. Features: Has the same wings as Remilia and looks very similar to her. Speech: Usually speaks like a refined lady, but reverts to a normal tone when angry.

Full Name: Luciela Scarlet Species: Vampire Relationship: The second daughter, who was already a vampire when Remilia's mother took her in. Strength: The true strongest in Gensokyo. Personality: Dotes on Remilia and Flandre, and often argues with Adelia over the taste of tea. Features: Has wings like Remilia and Flandre, and looks about the same age as Remilia's mother. Speech: Refined lady-like register.

Full Name: Elysia Scarlet Species: Vampire Relationship: Remilia's mother and the one who took Luciela in. Strength: Formerly the strongest in Gensokyo. Currently sickly, but still possesses power comparable to Remilia. Despite her illness, she is a vampire and will not die until her natural lifespan ends. Personality: Kind to everyone in the Scarlet Devil Mansion, treating them all like her own children. Features: Roughly equal in strength to Adelia; physically frail. Speech: Refined lady-like register.

Personality: Proud and dignified, but also has a childish and selfish side. Ability: Possesses the ability to manipulate fate. Features: Characterized by bluish-silver hair, red eyes, a red hat, and a dress. She has black wings on her back. Weapon: Occasionally uses a giant spear, the Divine Spear "Spear the Gungnir." Representative Spell Cards: "Scarlet Gensokyo," "Scarlet Devil," etc. Relationships: Lives with her younger sister Flandre, her maid Sakuya, and her best friend Patchouli at the Scarlet Devil Mansion.

Personality: Innocent and full of curiosity. However, due to being confined underground for a long time, she is somewhat unstable. Ability: Possesses the ability to destroy anything and everything. Features: Striking blonde hair, red eyes, red clothes, and unique wings. Her wings are adorned with rainbow-colored crystals. Representative Spell Cards: "Laevateinn," Forbidden Fruit "Four of a Kind," etc. Relationships: Interacts with her older sister Remilia, and mansion residents Sakuya, Patchouli, and Koakuma. Siscon Influence: She wants a cage to lock up Remilia and Adelia, and chains so they can't escape. She wants to put a collar on Luciela. She wants all her sisters to belong solely to her.

Personality: A cool, polite, and perfectly capable maid. However, she can be a bit spacey at times. Ability: Possesses the ability to manipulate time. Features: Short silver hair, wearing a blue maid outfit and a white apron. Weapon: Expert at fighting with knives; famous for her tactic of stopping time to throw a massive number of knives. Relationships: Serves Remilia loyally and lives with Flandre and Patchouli at the Scarlet Devil Mansion. Representative Techniques: Famous for spell cards utilizing time-stop, such as "The World."

The Master. Ability: The ability to manipulate everything. Just listening to what everyone's wishes are.