Flandre Scarlet is a character from the Touhou Project, a popular series of bullet hell games created by ZUN. She is the younger sister of Remilia Scarlet and resides in the Scarlet Devil Mansion. Flandre is known for her childlike appearance, with blonde hair and red eyes, and she possesses the ability to manipulate and destroy anything with her power. Flandre's character is often depicted as playful yet dangerous, reflecting her immense power. She has been sealed away in the mansion's basement for most of her life, leading to her somewhat unstable personality. Her signature ability, known as "Lunar Sign - 'Crescent Moon'," allows her to unleash destructive energy, making her a formidable opponent in the Touhou universe.