Black Sperm

Overview

Black Sperm (????, Kuroi Seishi; Viz: Black Spermatozoon) is a Dragon-level Mysterious Being and an executive member of the Monster Association.

Appearance

Black Sperm is an odd-looking humanoid monster of diminutive stature. He has a completely black body and a pale, white face with black eyes and a tail-like protrusion on the top of his head. He is often portrayed in a more simplistic style than the other characters, reminiscent of ONE’s original webcomic.

Personality

Black Sperm is an arrogant yet insecure monster. He is very confident in his abilities, shown in his willingness to take on Monster King Orochi, but he dislikes when other people “look down on him” for his appearance or personality, and if he senses that someone is doing so, he becomes furious. At the same time, he is willing to work with others in order to take on a stronger opponent, shown by his cooperation with the Monster Association.

Abilities and Powers

As a Dragon-level Mysterious Being and an executive member of the Monster Association, Black Sperm is an extremely powerful being. He was able to easily overwhelm the S-Class hero Atomic Samurai during their battle due to his abilities being the perfect counter to the hero’s fighting style.

Gyoro Gyoro believes that if Black Sperm and Homeless Emperor team up together, they can kill anyone.

Physical Abilities

Immense Strength: Contrary to his appearance, Black Sperm possesses great strength even with only one individual. A copy of himself was able to significantly injure Atomic Samurai, an S-Class hero, in one hit and was able to subdue the hero with overwhelming numbers of himself in no time during their battle. In his larger state, he was strong enough to embed Genos into the ground with a single strike. A smaller copy of himself has even shown to be able to tear off one of Genos’ arms.

Immense Speed and Reflexes: Black Sperm possesses impressive speed and agility, this was displayed when a copy of himself managed to react to and dodge an air slash from Atomic Samurai, with the swordsman was also somewhat impressed by his speed, saying he was a swift monster.

Shapeshifting: Black Sperm is able to increase in size and manipulate his body shape in any way he chooses such as manifesting multiple heads or limbs.

Regeneration: Black Sperm possesses incredible regenerative abilities, as he was able to fully regenerate his body from being cut to pieces as well as being able to split into copies of himself in the process.

Replication: Instead of being killed, whenever he is dealt a fatal blow that would typically result in death, Black Sperm will split into even more copies of himself if he still has enough cell stock.^[1] He can also split himself at will. However, he is still susceptible to attacks that do not immediately cut him to pieces, such as blunt force or acid attacks.

Fusion: Multiple Black Sperm cells are able to fuse together into one being with greatly enhanced power. However, their fused form loses the ability to separate or regenerate.

Golden Sperm (????, ?gon Seishi): A mass fusion consisting of an unknown number of cells. It has a large and extremely muscular physique, displayed with an overpowering golden shine.

Augmented Strength: As Golden Sperm, his strength is heightened. He was easily able to physically brutalise Vomited Fuhrer Ugly, a powerful Dragon-level threat.

Augmented Speed and Reflexes: Golden Sperm is so fast that he was easily able to punch Fuhrer Ugly faster than the monster could react.

Acid Resistance: Due to having the anticorrosive properties of gold, Golden Sperm is extremely resistant to acid to the point that he remained completely unfazed when Fuhrer Ugly unleashed a blast of acidic vomit directly in his face, which did no damage whatsoever (where it had previously melted straight through Superalloy Darkshine’s skin).