If you make a wish on Christmas Eve, will it come true?

As another round of preliminary tests approach for Keitarō, so does Christmas. And as the first Christmas of the millennium, there is a rumor that if one confesses his love on this special eve it will come true. Keitarō has decided what he needs to do on this Christmas eve. But being a retaker, can he afford taking attention away from the tests on the same day?