Pink Koinu

Pink Koinu is a baby Marine soldier appearing in Chin Piece. He is a counterpart to Sakazuki, and tends to act as if he is.

His, Mint Kotori's, and Lemonade Kozaru's mothers look like extremely deformed versions of Chimpy, Chiyobbaba, and Sasoz.

Appearance
Pink Koinu is a baby with an adult-sized Sakazuki's head. He only wears a diaper and a copy of Sakazuki's baseball cap, with the word "MARINE" replaced by "BABY".

Personality
Pink Koinu seems to think of himself as the actual Sakazuki, regularly referring to Chimpy and his crew as children despite being a baby himself. However, unlike his counterpart, Pink Koinu doesn't enforce Absolute Justice, and was willing to allow Chimpy and his friends to go free after being impressed by their friendship.

Abilities and Powers
Despite not having a Devil Fruit, Pink Koinu attempts to emulate Sakazuki's abilities. He is relatively powerful, with him, Mint Kotori, and Lemonade Kozaru being able to stop Chimpy.

Techniques

 * Magma (マグマ): Pink Koinu squirts boiling milk from his bottle onto enemies.

Chin Piece
Pink Koinu, Mint Kotori, and Lemonade Kozaru were given Chimpy and his friends, who had been arrested, though Chimpy, Chiyobbaba, and Sasoz had escaped from their bonds. After successfully pushing back the three escapees, they allowed them two minutes to train.

Upon the pirates returning, Pink Koinu faced off against Chiyobbaba, becoming depressed at how she judged him for his appearance. He was later trapped in Chimpy's Busoshoku Haki-imitation poop pile, and was convinced by Mint Kotori to let them leave.

He, along with his mother, was later asked by Eunkov to act in their movie, but left when they revealed that the cast wouldn't be paid.

Trivia

 * Pink Koinu's name literally means "Pink Puppy", likely meant as a parody of Sakazuki's alias "Akainu" (赤犬)