Intruso (Fang x Buster x Hamlet)

Hamlet, a street musician, was performing one of his sets for the day when two young men approached, applauding his work

Fang: Don't you think he plays well, Buster?

Buster: Yeah... he plays acceptably.

Hamlet stopped playing and looked at the young men with a radiant smile, holding his wooden flute in his hand, until some police officers came heading in his direction because they considered his skills with the flute to be dangerous

Fang and Buster were friends since they met by chance in a meadow with a tree and a hill, they have always felt feelings for each other but they never wanted to say them because of how it was going to give an opinion to the other thus hiding those feelings for a long time.
One day they meet Hamlet, a musician with flute skills, whom they help escape from the police and then form a friendship with Fang since Buster did not like him at all.
Hamlet attracted Fang's attention by causing Buster to hate him but over time after committing acts of jealousy he begins to fall in love with him.
In the end after solving several problems Hamlet, Buster and Fang end up as a couple in a polyamorous relationship