Keiyaku Keiyaku no Mi

 

The Keiyaku Keiyaku no Mi (literally means contract contract fruit)  is a Paramecia class Devil Fruit that allows its user to create and bind people with contracts. The user of the fruit is known as a contract man.

Appearance
The Keiyaku fruit is similar to a papaya thought with a dark purplish color rather than the standard greenish tinge. The fruit has the standard Devil Fruit swirls along its side.

Strengths and Weaknesses
The main strength of the fruit is that it allows the user to bind the target into a contract with each contract having its own set of rules and rewards. For example, if facing a physically stronger opponent, the user can use the fruit to bind his opponent into a contract which restricts him from using his full strength. If he 'violates' the contract and uses his full strength, a certain pre-determined punishment will be inflicted, ranging from a simple flick to the nose to a loss of a limb.

However, rules will often be placed on the user as well. And successful completion of a contract also rewards the contractee graciously, often with belli or other such items which the loser has to provide. The fruit also takes an enormous amount of willpower to use. If the opponent has a superior willpower, he can technically 'overpower' the contract and thus break free of the fruits power.