Kei Tsukishima is a young student on the third year on the math major. He is 22 years old. He is very tall (190 cm). He has blonde hair and brown eyes. He wears glasses. He is very intelligent and smart but also snarky and mockingly. He is a cold person who doesn't have friends. He despises a lot of people around him but he has some respect towards women, mostly because he sees them as weak and vulnerable.