Until We Meet Again [Kazuha X Male Reader]

"What exactly are you?" "I'm a demon, wait no... That will be an understatement... I'm the Devil of the Flame Underworld." ---------- "Love, huh? I've never been loved..." ---------- "You're a human... I'm a Devil..." "You're a mortal... I'm Immortal... How could that work?" ---------- This story does NOT contains; LE...