Aselia the Eternal: The Spirit of Eternity Sword

Ordinary orphan Takamine Yuuto, who lives only to care for his sister Kaori, is pulled through a mystical portal into the distant land of Phantasmagoria. He arrives to find Kaori held hostage, a sword thrust into his hands, and no choice but to fight as an Etranger — a warrior endowed with extraordinary power. Alongside the female Spirits who guard Phantasmagoria from the darkness threatening to consume it, Yuuto's desperate mission slowly becomes something more: a story of belonging, courage, and unexpected love.