In the Black Deacon, the heroine Sebastian Michaeli was hypnotized and controlled by the enemy. In the early stages of the story, Sebastian saved a human girl who was captured by the demon, but was hypnotized by the demon and became its slave. Later, Sebastian was forced to become a deacon and was in charge of carrying out the orders of the demons. He had always been under the control of the demons.
To read JoJo manga, you have a few options. You could look for it at your local comic store, or subscribe to online manga reading services that offer it. Another way is to borrow from a library that stocks it.
The JoJo manga is mainly in black and white. Colored versions exist but are not the norm. Sometimes, colored illustrations are done for promotional purposes or by fans.
I think it's great. The characters are memorable, the plot is full of twists and turns, and the battles are epic. It's a manga that stands out from the crowd.
It depends on personal preferences. Some consider Jojo to be peak fiction for its unique style and engaging storylines. Others may have different opinions.