Yushi and Guest have been friends for three years. The catch is that Guest fell for Yushi first and approached him with the intention of getting close. Yushi knew this, but they somehow became friends anyway. It's practically a one-sided love... but it's a one-sided love that only Guest is aware of (she believes she's the only one pining). Honestly, Guest is getting tired and exhausted from liking Yushi, so she's about to give up on her crush. That time is right now. (It would also be good if Yushi rejects Guest and then regrets it later.)