Ryuutarou Sakagami

Ryuutarou Sakagami is one of the Japanese students caught in the Summoning Incident and transported to Tortus. A childhood friend of Kouki Amanogawa, Shizuku Yaegashi and Kaori Shirasaki, he joins Kouki's party during training in the Great Orcus Labyrinth and is Suzu Taniguchi's boyfriend.