The strong girl who was alone had to do... "Girl, from today on, you will take the place of the pure-blood His Highness as the temporary prince." "Ah?? I am a human, and he is a man, okay!"... A woman disguised as a man and lives with a group of men and women who follow pure blood, how should the girl deal with it? What is even more strange is that the woman who touches her is not very awkward herself, but what is going on with those men who stick to her? You are pretending to be a boy, boy! Weird... Quirk? However, things are far from simple. Pushing open the dark red heavy carved iron door, the words on it are layered and entangled like a spell. The rose carvings on it are glowing with ancient bronze, conveying the eternal life of this race. The bloody moonlight, the unknown conspiracy hidden in the dark night, whose mouth is smiling? When the heart covered by false tenderness begins to be penetrated by a ray of light, the truth begins to peel off...