The story is basically about Natsukawa Masuzu entering the lead's life., she is the typical perfect girl who is heartbreakingly gorgeous and has a well behaved personality with good manners(?), she also is a returnee from abroad and has a wealthy ojou-sama like background.

The story starts right off the bat with Masuzu confessing to the dense main character, Kidou Eita, who happens to be the resident honor student. The problem with this is that Eita's childhood friend, Harusaki Chiwa has been eternally in love with him and isn't going to let this one go without a fight--- or rather, a war.