Gouketsu

For a Mysterious Being, Gouketsu was exceptionally calm, composed, and calculating, similar to a human. However, he also showcased the trademark cruelty and arrogance of a monster, as seen when he looked down on the contestants of the Super Fight tournament, stating that their consumption of Monster Cells would only make them mediocre, rather than ones comparable to himself. As demonstrated in his fight against Suiryu, Gouketsu was confident in his abilities. He also lusted for power, as was evidenced in his pride in his monster transformation. thumb|Gouketsu calms Bakuzan down. Despite this, Gouketsu was not without appreciation for individuals who impressed him with their strength. For instance, he gave Suiryu a second chance and expressed the possibility of him becoming an executive member of the Monster Association after witnessing him defeat all the newly transformed martial artists. Furthermore, he was also perceptive enough to realize that no matter how strong a monster became, they will be eventually hunted down and killed if alone. As a result, despite his cockiness, Gouketsu expressed cautiousness. After Bakuzan transformed into a Mysterious Being, he arrogantly attacked Gouketsu believing himself to be the strongest, but Gouketsu did not kill or injure him. He empathized with Bakuzan for being drunk on his newfound power, and calmly demonstrated his superiority by blocking all of Bakuzan's attacks in order to calm him down and make him realize that there will always be stronger monsters. Gouketsu had displayed a dark sense of humor when he kicked both Max and Sneck into the air while wondering if they both died, stating that he just simply poked them. This is furthered when he viciously toyed with Suiryu to humiliate and torture him before feeding him to The Three Crows. Gouketsu strongly followed the philosophy of Social Darwinism where the strong would weed out the weak and powerless through blood and violence and rule the world. Gouketsu's personality as a human is largely unknown; however, he was shown to be confident enough to challenge the intimidating Orochi to a one-on-one fight only to end up losing to him and getting captured. The role his torture played in his willingness to become a Mysterious Being is unknown.

Gouketsu's previous appearance as a human. As a human, Gouketsu was very muscular and donned a ripped black keikogi with a black belt. He had a strong and chiseled jawline and a scar on the left side of his upper lip, his eyes were sharp and with forked eyebrows, and he had spiky hair reminiscing a sea urchin. During monsterification; his original eyes were sealed and replaced with a set of four vertical bloodshot eyes with mulberry and bright yellow pupils; the X-shaped scars on his chin and neck and the blood on his forehead and upper ears, from his fight with Orochi, fused with his skin to form dark, cross-hatched markings. After becoming a Mysterious Being, Gouketsu grew to an enormous size. He gained large spikes on his arms and shoulders as well as smaller spikes on his knuckles, wrists and toes. His skin tone became dark brown, his ears and teeth became pointy, and he obtained two large lower sabertooth.