Two strangers meet, or are they really strangers? (Duncney fanfic)

{bad at desc so don't mind} Shirabu and Semi are Enemies,Semi didn't like Shirabu for taking his spot on his team.Shirabu started disliking him due to how Semi treats him,Then Semi starts having a feeling around Shirabu that's confusing he can't comprehend what it is tho?