Gokusai Rikuri

Gokusai Rikuri (獄彩陸莉) is a character introduced in the sidestory Toaru Majutsu no Index SS: Biohacker. She is a teenage girl and the first of the three Gokusai sisters.

Etymology
Rikuri's surname Gokusai may be translated from Japanese as "painted prison". The three Gokusai sisters share a pattern where each sister has a first name with a nature-based character, or a character for one of the three main armed forces; in Rikuri's case, it is the character 陸 (riku) for "land" (陸軍 rikugun mean "army").

Design Evolution
Haimura thought his design for Rikuri ended up too similar to Oriana Thomson. Because of this and since there were no actual illustrations of her in Toaru Majutsu no Index SS: Biohacker, Haimura thinks he will redesign her if she ever appears again.