Platinum Sperm

Platinum Sperm (白金 精子, Puratinamu Seishi; Viz: Platinum Spermatozoon) is the ultimate fusion of Black Sperm's cells, and a member of the Monster Association.

Appearance
Platinum Sperm is a very large and muscular humanoid, yet with a much more lean body than Golden Sperm. His signature head shape is much longer than the regular Black Sperm clones. His signature element is his platinum shimmer, similar to Golden Sperm's golden color. The platinum shimmer extends over the top half of Platinum Sperm's face, similar to a mask, and there appear to be two dark lines that trail down either side of Platinum Sperm's head and over the shoulders before tapering off at the pectorals.

Monster Association Arc
After Black Sperm begins to grow paranoid and fearful of King's words and next movements, when he believes that King is looking down on them, Black Sperm becomes enraged and decides to merge all of the Black Sperm clones together in order to defeat King. All of the Black Sperm clones charge toward Golden Sperm and begin merging with him, while a unit of 100 Black Sperm cells is detached as insurance. Platinum Sperm is then born.

Abilities and Powers
As a fusion comprising 53 trillion 999 billion 999 million 999 thousand 900 cells, including Golden Sperm, Platinum Sperm is presumably an extremely powerful being.

Trivia

 * In the original webcomic, Platinum Sperm does not exist, as Golden Sperm was the original final fusion of the Black Sperm clones.
 * In Platinum Sperm's manga debut, he was given the introduction Golden Sperm had in the webcomic.