Vermeil
I think this novel will end up a mess, the introduction of this obsessive girl does not work with the story, in fact it's really boring. She adds nothing to the story at all, she doesn't push the plot forth nor is she of any help to the MC either than being a bully invading the MC's space under the idea of fan girling. It's an old and disgusting trope really. Pity this is just a translation.