The 4 most difficult fruits to develop in "One Piece" are revealed. Do you know how to develop them?

1. Jacket Fruit, Jacket Fruit is the fruit ability of Kelly Fanku. This fruit ability feels quite useless. The ability of this fruit requires the person wearing it to be strong, but who is willing to be a stepping stone for others if they are strong? Only those scum would be willing. This fruit is a fruit that bullies ordinary people. Do you know how to develop it?

2. The Cross-dressing Fruit. The Cross-dressing Fruit is the fruit ability of Foxfire Kinemon. It can turn anything into clothes. It looks a bit magical, but it is of no use in actual combat. If anything, changing into camouflage uniforms should still have some effect. However, there is still a lot of expenses left. Do you know how to develop it?

3. Silence Fruit. Silence Fruit is Corazon’s fruit ability. It looks like a waste. Apart from creating silence, it seems to have no use. Do you know how to develop it?

4. Surgical fruit. To use this fruit well requires superb medical skills. This alone is enough to deter people.

Do you know how to develop it?