ATTACK ON TITAN: THE FOUNDING'S PARTNER

Just when Marley thought if they had discovered all the titans, the founder Ymir Fritz had brought to existence, they were wrong when a young man found the remains of a titan that looked more menacing than the rest (except the founding because it's humongous) it was the umbra titan the titan rumoured to be the personal follower of the founder.

Using the blood of the royal family and the spinal fluid of the umbra titan they created synthetic titan shifters called Umbra Arcanians.

Their abilities excel that of a normal person starting from superhuman strength to peculiar abilities and much more.

But they don't live long and cannot have offsprings,the most an average umbra arcanian can live is seventeen years after "birth".

But the marleans had a project planned,for years they've been working on a daily basis to have one umbra arcanian to live up to at least fifty years of age and it was a great success but one day when it was almost time to introduce it to the training program it was stolen by a cloaked figure..

Thus marks the end of the Umbra Arcanian's production.

This is where Rhys Umbra's story begins..