Genji Kagutsu

was the previous Red King and the late predecessor to Mikoto Suoh. He is the cause of the Kagutsu Crater incident, which changed the topography of Japan at the time of its occurrence. This not only killed Genji Kagutsu along with 700,000 civilians and the majority of Scepter 4 Clansmen and Cathedral Clansmen, but also resulted in the death of the previous Blue King, Jin Habari.

History
According to the Gold King, Daikaku Kokujoji, Kagutsu Genji is said to be a powerful king and can only be rivalled by Jin Habari and Iwahune Tenkei in combat.

Trivia

 * His name,, is derived from , the deity of fire, pertaining to the fiery imagery associated with HOMRA. Kagutsuchi's mother, Izanami, died of severe burns after giving birth to him; furious, Kagutsuchi's father, Izanagi, slayed him using his totsuka sword.