Adel (α), the third successor to the throne of a distant country, saves the life of a boy with a necklace named Yui (Ω) during his stay as a foreign student in Japan. After seeing the name of a brothel engraved on said necklace and his body full of wounds, Adel decides to take him into his home. At that moment Yui enters into heat and the young prince loses control and then...