Rei Toma has been drawing since childhood, but she only began drawing manga because of her graduation project in design school. When she drew a short-story manga, Help Me, Dentist, for the first time, it attracted a publisher's attention and she made her debut right away.

Her magnificent art style became popular, and after she debuted as a manga artist, she became known as an illustrator for novels and video game character designs. Her current manga series, Dawn of the Arcana, is her first long-running manga series, and it has been a hit in Japan, selling over a million copies.