I Was a Loner, but My Class Got Summoned to Another World… - Chapter 1: Otherworld Conflicts – Prologue

... perform the rite of summoning on the seventh day of the first month during the Year of Darkness. This world will find salvation, for the spirits will return and aid in bringing peace to the future days of chaos."

The Oracle of the Temple of the Seven Spirits finally received the long-awaited message. She tried to clear the hallucinogenic fog that numbed her senses by waving her palm back and forth in front of her face, but it took several seconds for her thoughts to return to reality.