Psychic Princess S01E03 - Domestic violence?

On the way back to the House of Grand Councilor, Yunxi encountered Nan Qingwan, whose purse was stolen. Yunxi volunteered to help her catch the thief, but during the fight with the thief, she uses psychedelic smoke. The Prince of Ye from the ferry boat saw the smoke and thought of the "assassin" he met on the wedding night.