Vanir

Vanir is a demon from the anime series Isekai Quartet. He is a magic user who wears a mask to hide his true appearance. He is a very intelligent and cunning demon, and he is always looking for ways to make money. He is also very mischievous, and he enjoys playing tricks on people. Vanir was once a very powerful demon, but he was defeated by the hero Kazuma Satou. After his defeat, Vanir was forced to serve Kazuma as his butler. Vanir is not happy about this, but he knows that he has no choice but to obey Kazuma. Vanir is a very complex character. He is a demon, but he also has a kind heart. He is often willing to help people, even if he doesn't want to. He is also very loyal to Kazuma, even though he doesn't always show it. Vanir is a very interesting character, and he is one of the most popular characters in Isekai Quartet. He is a great example of how a demon can be both evil and good at the same time.