Disciple of the Lich: Or How I Was Cursed by the Gods and Dropped Into the Abyss! (Light Novel) Vol. 3

THE GIRL FROM EARTH
Kanata and his friends have settled temporarily in the city of Manaloch after freeing it from the clutches of demons. They're trying to create the Blood Ether of the Gods, a powerful potion that Lunaere used as a vital part of Kanata's training. But their work is interrupted when Kanata makes a surprising discovery: another transplant from Japan, the mysterious Kotone, is looking for him. Is she simply hoping to connect to someone from her home world, or does she have something more sinister in mind...?