TV-Series
Description
Initially posing as a member of the Perfect Large Numbers, Grim Reaper disrupts a peace treaty between Justice, Devil, and Perfect Chojin factions. This identity masks his true nature as Psychoman, one of the ten ancient Perfect Origin Chojin who survived the gods' annihilation via the Seven Capillaria Rays. As a Perfect Origin, he trained with his peers on Earth for aeons, honing their abilities to the utmost level.

Psychoman discovered Magnet Power hidden deep within the earth. He dedicated himself to researching and mastering this force at a laboratory within Spain's Sagrada Família. Convinced of Magnet Power's superiority, he advocated for its adoption among the Perfect Origin, but they unanimously rejected it. Silverman proposed sealing it away due to corruption concerns. Only The Man supported Psychoman's efforts, entrusting him with further study. This research contributed to the creation of the Mortier de Pileur in the Chojin Graveyard, a device capable of generating artificial Chojin power.

During his research, he instructed Neptune King in Magnet Power techniques, yet deemed him a failure due to inadequate development of the ability. Later, alongside Strong the Budo, he assisted in forming the Perfect Large Numbers under Chojin Enma's direction, joining them under the Grim Reaper alias while concealing his true objectives.

Representing the New Large Numbers in the Pyramid stage of the tournament alongside Turboman, Grim Reaper revealed the next location at Saqqara Pyramid in Japan's Tottori Dunes. He fought Springman using techniques like Buzzsaw Hat and Ignition Dress. When the pyramid collapsed, merging matches into a tag-team format, he partnered with Turboman against Springman and Buffaloman. After Turboman's death, Grim Reaper callously extracted the Earth Unit energy storage device from his corpse and discarded the body from the ring.

He then engaged Buffaloman directly. Removing his robe, he utilized Skeleton Body, a defensive maneuver relying on absolute fearlessness to avoid damage. He exploited Buffaloman's prior injuries by tearing skin from his body with Dress Spear attacks. Despite Buffaloman's counterattacks, Grim Reaper demonstrated tactical adaptability.

Personality-wise, he embodies typical Perfect Origin traits: intelligence, calculation, and composed arrogance. He frequently speaks in a mocking tone, dismissing "inferior" Chojin as weak. While maintaining a strong bond with Silverman—idolizing him as a hero and preserving his room exactly as he left it—he openly rejects the concept of friendship as alien to Perfect Chojin. He expressed willingness to kill Silverman during their battle. A heated rivalry exists with Ganman, characterized by mutual disdain, though he refrained from erasing Ganman with dial energy due to latent respect.

His combat style heavily emphasizes Magnet Power, which he wields creatively but relies upon to the point of tactical oversight. Techniques often incorporate his hat and long dress, such as Buzzsaw Hat and Ignition Dress. His belief in Magnet Power's supremacy ultimately becomes an obsession contributing to his corruption.