Princess Lucia

In the demon world, Princess Lucia's existence is threatened by an ancient prophecy that foretells the birth of a child with the ability to engulf the entire world for seven days, born from her union with a human. To prevent this catastrophe, two angelic guardians, Mikamoto El and Kasukabe Rie, are sent to ensure the prophecy is not fulfilled. The chosen human, 14-year-old Koizumi Yuta, finds himself entangled in this supernatural conflict, further complicated by his unrequited love for the angelic guardian Kasukabe Rie. As Yuta navigates this perilous situation, he must survive the impending doom that threatens the world while also navigating his feelings for his guardian and the weight of his extraordinary circumstances.