Ariko Kasumi is a supporting character in the yuri series Märchen Mädchen. Ariko is Shizuka's childhood friend. The Kasumi family has historically had a servant-master relationship with the Tsuchimikado family. Ariko is contracted to the book of Issun Boshi.
- She was about to give Hazuki the death penalty for following Shizuka Tsuchimikado to the magic academy.
- Acts hostile towards Hazuki knowing that she's close to Shizuka.