jason olso know as abyss is the descedant of the original eminece in the shadows cid cagerou as his father ragna the bloodedge was the current leader of shadow garden one night while an solo mission he find an destroyed caudron thinking it mild have some use he ispect but caudron activate and unleash an big amount of seither as his seither body suit got overload make him pass out as the seither drag his body inside the caudron next thing he knew he wake up by an voice to see an girl who tell is his sister jason find out he reborn as jason akatsuki and have an sister and mother as he live with his sister..and later on find out he have the power of the last progenitor avrora...now he will master his power..and survive an new world..when everyone set sights on him...and not only his enemies...olso females one thing is clear...he won't be fall down that easy as he prove why is the descedant of the eminece in the shadows and will go to the deep darkness of the world if he have too