The rare war strategist. A famous strategist matching Koumei. While Koumei is known as Fukuryuu, he is known as Housuu. Met up with Shiba-i when he is at the Rakuyou ruins. In the Red Cliff battle, he seized the controls of the Shinkahihou and fires it to the sky. After which on the establishing of the Kingdom of Giga he became in charge of military matters.
After that, he went to The South to settle old scores with Koumei. He took control of the forces there and attacked Koumei. With Shukuyuu under his control, Moukaku had no choice but to obey Houtou and battle Koumei. But Koumei dispelled the darkness and freed the darkness-controlled army. Right after, Houtou used the Ankoku Gyokuji and fused with the Four Heavenly Kings to challenge Koumei again. The reason for Houtou's hatred towards Koumei goes back to an invasion of the Toutaku Troops. Jyosho, a close friend and fellow student, was heavily injured but insisted on holding back the enemy for Koumei, Houtou and the villagers' escape. Houtou wanted very badly to help Jyosho but Koumei held him back. Koumei understood Jyosho's intentions but Houtou saw Koumei as abandoning a friend.