Shizu Izawa, also known as Shizue or the 'Conqueror of Flames,' is a powerful otherworlder in the series 'Tensei shitara Slime Datta Ken.' Originally summoned from Japan during World War II, she is bonded with a Fire Spirit, Ifrit, granting her immense fire-based powers. Shizu serves as a mentor and an influential figure to Rimuru Tempest, the protagonist. Despite her strength, she is tormented by her past and the loss of her humanity. Her character embodies a search for peace and freedom, ultimately leaving a lasting impact on Rimuru and others she meets.