Douma

Douma, also known as Koko Daime, is the Upper Moon Six of the Demon Corps in the Demon Slayer Corps' universe, a member of the Twelve Kizuki and an incredibly powerful and intelligent demon. Douma exudes an air of calm and tranquility, possessing a graceful demeanor and an aristocratic charm. He is cold, manipulative, and enjoys psychologically tormenting his victims. Douma has the ability to manipulate the temperature around him, using ice and snow to his advantage. He is also capable of controlling the minds and emotions of both humans and demons, using this power to turn friends against each other. Douma has a complex relationship with Muzan Kibutsuji, the main antagonist and creator of the Demon Corps, and he values his independence and freedom highly.