Laplace, once known as Sarion Grimwald, began as the elves’ chosen hero destined to vanquish the Chaos Dragon. After a near-fatal defeat, the former Demon Lord Kagali resurrected him through forbidden magic as a Deathman, stripping his memories of his life as Sylvia’s husband and Elmesia El Ru Sarion’s father. Now bearing the titles "Wonder Pierrot" and "Jester of Indulgence," he serves as vice president of the Moderate Harlequin Alliance, cloaking lethal intent beneath a clownish veneer of vibrant attire, a jeweled asymmetrical mask with rabbit-like ears, and a perpetually mocking smirk. A master strategist, Laplace favors subterfuge and mental manipulation over brute force, orchestrating schemes like the Orc Disaster and infiltrating the Holy Empire of Ruberios to destabilize rival powers. Though he later allies with Rimuru Tempest for survival, his loyalty lies firmly with Kagali, Footman, and Tear—comrades he supports with sardonic humor masking genuine care. This duality surfaces in his response to Clayman’s demise: publicly ridiculing the Demon Lord’s folly while secretly mourning and executing Roy Valentin for disrespecting Clayman’s legacy. During the Eldorado crisis, Laplace reunites with Sylvia, collaborating with Yuuki Kagurazaka to rescue allies before sacrificing himself to shield them from Chiffon Jahil. His ultimate fate remains uncertain, echoing his history of surviving catastrophic injuries. Though his physical and mental magic rivals Awakened Demon Lords, Laplace deliberately conceals his power to evade scrutiny. As a unique Deathman immune to Kagali’s control, he embodies unpredictability, mentoring allies like Clayman—whose impulsive schemes he cautioned against—and consoling Footman and Tear in moments of loss. Fragmented memories of his heroic past clash with his present identity as a cunning manipulator, occasionally piercing his detached facade. Fleeting glimpses of vulnerability—rage at comrades’ insults, subtle protectiveness toward Elmesia—hint at the man buried beneath the jester’s mask, eternally torn between residual nobility and calculated self-interest.