Akihiko is an orphan with a sister around his age. One day they were wandering around the ancient ruins, trying to escape from their home that got attacked by monsters. After a bit of walking they met a weird being, he had a mysterious aura. Suddenly, out of nowhere they got attacked by it ,which led into a gruesome fight. Unfortunately the being won the fight and claimed his reward, that being, Akihiko's sister. Akihiko then wakes up with a new ability.
