Normal couple(ManXWomen)

Note:- (spoiler alert)
This story about Princess Lumina and her bf that makes revolution by stab her in the back because he have to, to end the royal family (tyrant)
This story set on future korea where they all (key figures) reincarnated and specially the princess and her knight met each other again and only certain people still retain their memory of pervious life.
Is everyday love story between humble knight that love too deep into the princess but afraid of rejection and satisfied by being a