GAN is a mangaka, who is known for the manga series Puella Magi Suzune Magica, and the non-Puella Magi-related manga: Free! (no, not the one with handsome dudes in swimming shorts).
His alternate names are まんじゅう, manjuu (elsa).
- Puella Magi Suzune Magica (serialization ended, currently released as tankobons)
- Free! (Not "High☆Speed")