Akuma no Kuroninja

Akuma no Kuroninja is the most evil Kuroninja in the entire Kuroninja Multiverse, even more evil than everyone on Earth-18, the most evil universe in the Multiverse.

His catchphrase is “Do I look like a bad guy?"

History
Akuma no Kuroninja is from Earth 666, which he also corrupted into his own image after rising to power. He then started taking people's souls, including Kuroninja the Destroyer, who would later become his personal bodyguard and right-hand man.

In 2021, Akuma no Kuroninja made a deal with Tojitendo to bring the Kuroninja Multiverse under their control. With their help, he created a machine that would slowly destroy the protective barrier preventing Tojitendo from fully taking over the Kuroninja Multiverse. However, the Interdimensional Guardians found out about it and Kuroninja and Kuronindragon were sent to take care of business.

Trivia

 * I have no idea what to put here.