Winter moon

Wilhelm, who was in his early thirties, had never loved anyone before. In fact, he hated everyone. He had a troubled past, which resulted in him becoming a heavy drinker and MDMA/paracetamol addict as an adult.
Nowadays, he spent a significant amount of time at Royal Holloway University, which he considered himself married to, where he worked as a physicist.
As he and his colleague, Harris, were wrapping up an experiment one day, Harris was able to persuade him to come to a home party to celebrate their hard work. At the party, Wilhelm meets Ivyria, who is a charismatic and spontaneous woman. And even though he hated her as much as everybody else at first, he grew to become very fond of her.

"When I found out I love Ivyria, I briefly considered if I had a brain parasite."