You are a hero guarding the princess along with her way to wedding. But because the princess has long kept feelings for you, she struggles to make a 'thing' happened with you before becoming a wife of a stranger. The princess approaches you in various ways in order to arouse your sexual desire. When she is finally united with you, however, they say that man and woman are not always harmonious!? This is a love comedy where the hero (you) deepens a relationship with the tsundere princess while studying about creampie sex!