"Sōei originates as an Ogre tribesman, surviving his village's destruction alongside Benimaru, Shion, Shuna, Hakurō, and Kurobe. After this shared tragedy, the group encounters Rimuru Tempest, pledging loyalty upon being named and evolving into Kijin. Sōei evolves further during the Orc Lord conflict, advancing to a Yōko, a higher-tier Kijin variant. Within the Jura Tempest Federation, Sōei commands the intelligence division, leading a specialized ninja unit. His duties encompass espionage, reconnaissance, and covert operations. He utilizes skills like shadow movement for seamless infiltration and teleportation. His combat abilities feature high-speed attacks, illusion creation, and assassination techniques, often employing daggers or kunai. He maintains discreet surveillance over territories and potential threats, reporting directly to Rimuru. Sōei operates with stoic efficiency, prioritizing mission success with minimal dialogue. He demonstrates absolute loyalty to Rimuru, executing commands without question. His relationship with Benimaru reflects mutual respect and trust, frequently collaborating on strategic operations. Interactions with fellow ogre survivors Hakurō and Kurobe show the deep camaraderie forged through shared tribal heritage and service. He appears in the OVA *Visions of Coleus*, participating in Rimuru's covert mission to the Kingdom of Coleus alongside other key subordinates. His involvement includes intelligence gathering and tactical support during the royal succession conflict. Information regarding Sōei's involvement in the *Scarlet Bond* movie or spin-offs like *The Slime Diaries* is not provided."