Royal Heir's Secret Admirer

A humble boy suddenly learns he has been named the heir to the throne, a turn of fate that leaves him unprepared for palace life. His fiercest rival, who has now been pushed down to second in line, refuses to let the newcomer face the role alone and insists on tutoring him personally. Every lesson becomes a clash of pride and resentment as the two are forced into close quarters, with old animosity slowly tangled up in something neither of them expected.