Ryuuma Shimotsuki (霜月リューマ) is a main character in MONSTERS: 103 Mercies Dragon Damnation, voiced in Japanese by Yoshimasa Hosoya. The series' music includes "Monsters 103 Mercies Dragon Damnation - Theme Song / OST - Audio Edit/Cut", "Monsters 103 Mercies Dragon Damnation - Theme Song / OST - Audio Edit/Cut".
