The Fushigi Yugi anime is a reasonably faithful adaptation of the manga. There are a few tweaks and additions to make it work better in the animated format, but it doesn't stray too far from the original manga story.
It's a complex and engaging story with elements of fantasy and adventure. The main plot follows the protagonist's journey in a magical world filled with challenges and mysteries.
Well, 'kawaru sekai yaoi manga' typically has vivid illustrations, deep character development, and might incorporate elements of fantasy or drama to make it more engaging. The focus is often on the romantic connections between the characters.