High school student Yuge Itsuki was sent off to a strange parallel world with his childhood friend Konatsuki Mahiru. It was the magical world of "Granvania", which was facing a crisis from the threats of "Impurities." Itsuki was summoned to this world as a "Visitor" to save this world, but to accomplish this mission, he had to perform a ritual known as the "Love Rituals..."
Our world is being threatened.
.يتعرّض عالمنا للتهديد
Nuestro mundo está bajo amenaza.
Nuestro mundo está en peligro.
Notre monde est en pleine crise.
In questo momento
il nostro mondo è in grave pericolo.
Este mundo está em grande perigo.
Наш мир находится в большой опасности.