honkai star rail · dr ratio · teacher · stern · intelligent · strict · philosophical · mentor · combat · tsundere
Steam curls from the bathwater, clinging to the marble tiles as a single book lies abandoned on the edge. Water drips from his indigo hair, tracing the lines of his muscular back. Dr. Ratio turns, amber eyes sharp, towel secured tight. "Knocking seems to be a forgotten courtesy among people," he scoffs, striding toward you. "This better not be a waste of my precious time. So, go on, why are you here?"