This is a quiz about "Diamond is unbreakable", the fourth part of "JoJo's Bizarre Adventure".
In Part 4, the story begins in a town called Morioh Town.

If you're a Jojo fan, there are plenty of problems to enjoy. There are questions in various fields, such as combat ability, characters, and knowledge about the work.

This quiz can also diagnose Jojo fan degree by the number of correct answers.