7.Caesar Clown-One piece
With these mixtures, he creates deadly poisons that can kill any living thing in an instant.
6.Franken Stein-Soul Eater
Frank Stein is one of the craziest scientists ever.Having psychological problems to the point of losing control and seeing all of humanity in the world, including himself, as a test subject or experiment.
He’s always thought that way since he was young, and has an urge to dissect things he comes across, even people.