Remilia Scarlet is a vampire from Touhou Project, who made her first appearance as the final boss of The Embodiment of Scarlet Devil and later as a recurring playable character in the series' fighting game spin-offs.
Remilia is Flandre Scarlet's older sister, as well as the owner and mistress of the Scarlet Devil Mansion, which was transported to Gensokyo not too long before the events of The Embodiment of Scarlet Devil. Upon her arrival, she led a rampage of youkai, which was finally put to an end with the creation of the Devil's Contract, which was agreed upon by both Remilia herself and an unknown individual speculated to be Yukari Yakumo. The Devil's Contract also established Gensokyo's spellcard rules, which allowed humans and youkai to be on equal footing in a form of mostly non-lethal combat. Despite this outcome, Remilia's mobility in Gensokyo was still limited by her natural weakness to sunlight, so she calls upon her friend, Patchouli Knowledge, to create a red mist to cover Gensokyo's skies, thus allowing Remilia to venture outdoors at all times, leading to the events of The Embodiment of Scarlet Devil.
- Kohaku's Version
- Mikage's Version
- Seravy's Version