World Break: Aria of Curse for a Holy Swordsman

Season 1, Episode 11: The Nightmare from a Former Life

Select Source

The emergence of a Metaphysical delays Moroha's departure from Russia. Little does anyone realize, a dark specter from his former lives is about to reappear in Japan, forcing everyone there to face it without his aid. The Metaphysical destroys everything in sight. Moraha gets informed about the Metaphysical and remembers both of his past lifes discovering that he lost both of the people he loved by the Metaphysical.