PLSS HELP ME FIND THIS BL MANHWA

So the MC is a university student and when he gets so focused in his research he becomes very excited (horny) thats how he got a nickname from his lab buddie. A female senior(?) then walked into the lab and told everyone about the rumor that there's something like a supernatural being (i forget the name) who'd give you gold behind the uni mountain and that she found some . The MC was skeptical but ended up in the mountain, he then meet this goblin(?) and immediately kissed him, intrigued, the MC turned into his horny/excited self and began to investigate (?) the goblin, from his hair, blood, even sperm. That's all that I could remember!!! THXX