Souei Kijin is a loyal and skilled ninja serving Rimuru Tempest in the anime series 'Tensei shitara Slime Datta Ken' (That Time I Got Reincarnated as a Slime). As one of Rimuru’s trusted subordinates, Souei is known for his quiet demeanor, remarkable stealth abilities, and proficiency in espionage. He often undertakes intelligence-gathering missions and acts as a bodyguard, playing a vital role in protecting and advancing the interests of the Jura Tempest Federation.