Unstoppable Deep Diver

Subgenres help us classify books at a more granular level. They help us find the kind of books we vibe with, our cozy niche in the gigantic world of books. Reading several books from the same subgenre is a great sign of appreciation for it, but appreciation is not enough to describe the love some people feel for it. There is infinite depth to every subgenre, and we are ready to dive deep and discover that there's more than meets the eye, for the riches are in the niches.

Read 100 books from the same subgenre. Only subgenres count, umbrella genres don't count because of their broad definition.