A certain human kingdom has risen to the height of prosperity - but in return, they sacrificed a maiden to a Dragon as part of a time-honored ritual. However, with the progress they've made in their technology and military force, humanity has attained the power necessary to defend their kingdom without having to rely on the Dragon anymore. Feeling that the Dragon has become a relic of the past, they have chosen a priestess to assassinate the Dragon. But the Dragon fell in love with the priestess at first sight instead! An up-and-coming "killer" romantic comedy! The winner of the tenth Alphapolis Manga Award is finally here!