Kouen Ren

Kouen Ren (練紅炎, Ren Kōen) is the Kou Empire's first Prince. He's the strongest general of the Empire, together with his two younger brothers Kouha Ren and Koumei Ren. Kouen is a Dungeon Capturer, capturing three Dungeons, and a King Candidate.

Appearance
Kouen is a tall man with red short hair, a goatee, thin eyebrows, and wears a small black hat.

He wears a clothes that signify his royal status, and a black cape.

Personality
Kouen has a desire to become the one king in the world. He wants his siblings to help him and doesn't want to fight them. He wanted to solve the riddle of the Toran language and the king vessel and how they are all liked in the past.

Second Sindria Arc
Kouen is in the Balbadd's throne room waiting for Judal's return. When Judal returns, he asks if Judal has brought him a present. Kouen then laughs when Judal says that he told Sinbad that why know they start a war with them. He then gets up and tells everyone that the day in which they will obtain the whole world is imminent.

Abilities
Kouen is the strongest general of the Kou Empire. He is the only person besides Sinbad, to capture more than one Dungeon, capturing three.