It’s not unusual for an anime villain to become a good person.
10. Speedwagon in Jojo’s Bizarre Adventure
Robert E. O. Speedwagon was once a famous criminal living on the streets of London before meeting Jonathan Joestar.
Jonathan inspires Speedwagon to become a good person, although this is not unusual.
9. Gentle Criminal in My Hero Academia
Gentle Criminal is a villain with likes and views on social networks. He refuses to become a hero, despite possessing quite an interesting Quirk.
When Deku discovered this, he tried to stop Gentle Criminal. After many encounters and conversations, Gentle Criminal agreed to return to the school festival.
8. Satan in The Devil is a Part-Timer!
The isekai anime series The Devil is a Part-Timer!
Although his actions were not motivated by kindness, the situation forced him to return to justice so he could make money and survive in the modern world.
7. Orochimaru from Naruto
Theoretically, Orochimaru joined the “good” side when he helped Naruto and the rest of the village fight the destruction of the world during the Fourth Great Ninja War.
Orochimaru has been tested a lot, but in Boruto, he seems especially attached to Mitsuki in a very parental way, which is very hard to believe in someone like Orochimaru.
6. Yato from Noragami
Yato was once a god of disaster, destruction, and violence, even when he was controlled by his father.
As a result, Yato started going around town answering random prayers and hoping to secure him a few yen.