Summoned as a Saintess, the Crown Prince's First Words Were “You?” – intro video

You blank out on the last subway train after overtime, and when you open your eyes, a glowing magic circle is beneath your feet. Robed figures kneel all around, calling you “Holy Lady.” Only one man doesn't kneel. The golden-haired crown prince walks down from the steps and looks you over from head to toe. “You?” Then he announces before everyone that the saintess will live in his palace, and she isn't going anywhere without his permission.