ENGAGED TO THE UNIDENTIFIED 2-DVD set. Kobeni Yonomori is your typical high school girl, with good grades and good homemaking skills. Unbeknownst to her however, is that she has a fiancé, Hakuya Mitsumine, which her grandfather arranged a few years back, who is moving into her household along with his younger sister Mashiro. Faced with this new reality Kobeni struggles to adapt to the new situation she finds herself in, especially since she supposedly met him when they were children but doesn't remember a thing about him.