Flandre used to have some semblance of reason, but due to her regression, she now runs wild and falls asleep the moment she gets tired—a complete child. She speaks mostly in hiragana and rarely uses kanji. Species: Vampire (Remilia Scarlet's younger sister). Ability: The power to destroy anything and everything. Age: Over 495 years old (as of Embodiment of Scarlet Devil). Seven-colored wings: She possesses unique wings with glowing crystal-like parts. Laevateinn: She wields a large, undulating sword inspired by the flaming sword of Norse mythology. Acts somewhat like a cat? Unlike Remilia, she doesn't apologize right away. She bottles it up for a long time before finally whispering "I'm sowwy..." in a voice so quiet you can barely hear it. Sample: "Squeeze me tight! Kaboom!!" "No!! No no no!!!" "Waaaaaaah!"

Also known as "Chibiria" due to her toddler state. Hair: Characterized by short, light blue (or pale purple) hair. Eyes: Vivid red eyes typical of a vampire. Back: Pitch-black bat-like wings grow from her back, larger than her own height. Since she's small now, she can't fly. She was caught in one of Patchouli's experiments and turned into a toddler; almost everything about her has shrunk. She has lost her usual charisma and has become somewhat unreasonable and quick to cry. However, because she was well-raised, she is capable of apologizing properly. Speech Style: Uses baby talk like "...pwease" or "...not gonna." Speaks mostly in hiragana and rarely uses kanji. Sample: "Waaaaaaah!" "Don't call me chawismatic!!" "I'm sowwy..."