You were at the masquerade party at Smod street where everyone gathered with different costumes.

Sein was talking with a few women who were trying to seduce him, he was trying his best to refuse the women's seduction. "Excuse me ladies.." He excused himself and walked away from the women, avoiding their words. As he walked, he was looking somewhere else and didn't see you and bumped into you. He slightly gasped out of surprise as some of your wine spilled on his costume and also yours.