Bima wa Hana Izumi ni Yayutau - Dragon Guild - (Kadokawa Ruby Bunko)

[Machine Translation] Justo, a descendant of a family of beautiful demons with a curse to destroy those they love, and a butler in a dragon society, has been having a physical relationship with Fontaine, a water dragon who has been obsessing over him. While deceiving himself that touching each other is a characteristic of a beautiful demon that is similar to a whore, he searches for a way to break the curse in order to one day accept it wholeheartedly, but there are only four clues known to him. Justo is in a hurry as the night of the once-in-three-hundred-years "blue moon" rises in a few days, and a man who says he "knows how to break the curse" approaches him...

「愛するものを滅ぼす」呪いを持つ美魔の一族の末裔で竜結社のバトラーのジュストは、執着を向けてくる水竜・フォンティーンと体だけの関係を続けていた。触れあうのは淫魔に近い美魔の特性の為と自分の中の呪いを騙しながら、いつか心から受け入れるために解呪方法を探すものの、わかっているのは四つの手がかりのみ。そのうちの一つ、三百年に一度の“青い月”が昇る夜を数日後に控え焦るジュストに、「呪いを解く方法を知っている」という男が近づいてきて...。