As everyone said, you can see how the other guy was gonna be a whole ass rival if the manga got to continue with how perfect he seemed for her. Poor part-timer, it was nice when you were shipping their will they, won't they relationship but now that they're together it's just bitter reminders of single you are. Hopefully master won't kick them out lol.
But nonetheless still a good read and a good end. At least the author give us a couple and a soon to be married. Not like some manga where they end it with an open ending and i hate that kind of ending. Im gonna miss this manga T-T