I found some recommendations for novels similar to Romance Killer. Here are the related novels I found for you:
1. Book of Troubled Times by Ji Cha
2. "Spirit Realm Walker" Author: Paper Selling Little Langjun
3. Tang's Table Author: Jie Yu
4. King of the Familiar by Light Spring
5. Fairy Comes Author: Blue Dream
These novels may have some similarities with Romance Killer. I hope you will like them.
It's definitely gained a significant fan base. The interesting characters and engaging plot have contributed to its popularity. Also, the way it combines romance and mystery elements appeals to a wide audience.
It's a story that typically involves elements like love, relationships, and perhaps some obstacles to love. Maybe it has a character who disrupts the normal flow of romantic relationships, which is what the 'killer' in the title might imply.
The relationship in Shuri x Riri fanfic can be complex. Sometimes it shows their competitive side as they both are very capable in their fields. They could be rivals who push each other to be better. However, it also often evolves into a collaborative relationship where they work together on amazing projects, like creating new types of tech that combines Wakandan and modern American engineering concepts.