Tatsumi Karasuma (鴉間 巽) is a minor character in Mahou Shoujo Site.
He was a fair-skinned boy with black hair, he also appeared to be quite tall. He's been seen wearing his school uniform and his casual clothing.
He's quiet and acts mature, though he can be quite sinister. He seems like the person who analyzes his words before saying them, making it easy for him to fool the detectives interviewing him.