Рютаро Сакагами

Хадзимэ Нагумо's classmate, summoned to Tortus. Kōki Amanogawa's best friend. A sturdy guy who relies more on physical strength than intelligence. Very loyal to his friends. During the final labyrinth, he realizes he has fallen in love with Yue. Afterwards, he comes to see himself as a coward for not confessing to her out of fear of taking her away from Hadzime. After returning to Earth, he starts dating Suzu Taniguchi.