Cirno is an ice fairy from the Touhou Project series. She first appears in The Embodiment of Scarlet Devil as a stage 2 midboss encountered over the Misty Lake. According to series creator ZUN, Cirno is described as a very special exception among fairies, possessing abilities that make her notably powerful. She has the unique ability to freeze bullets mid-air, which is central to her gameplay mechanics. In the spin-off game based on the Touhou Sangetsusei manga, Cirno seeks revenge after the Three Fairies of Light destroy her house during winter, planning her retaliation for spring. She frequently appears in manga chapters interacting with other characters like Daiyousei, engaging in activities such as playing hide and seek at the Misty Lake.