The Titans

Titans are a race of beings that are created by the Seers to manage life withing pockets in The Void. The Titans arrive at their pocket when a Seer summons them.Eumos has 5 Titans that created it; Oas, Atos, Iais, Utris and Emos. The Titans where brought to Eumos via The Great Gateway which Raher was controlling. Titans are usually immortal beings however, the Titans of Eumos are not because of Iais.

Iais Curses the Titans
When Iais was summoned to Eumos by Raher he was given the gift of controlling time on Eumos and when he got to using his power he began using his power he used it to see all of the future of Eumos and what the Titans where going to do. Upon seeing what the Titans where capable of and what their inevitable plans where he vowed to try and kill off the Titans before this could happen. Once all of the Titans had gotten their powers and they had started creating Eumos he pulled Utris to one side and asked him if he wanted a way to kill people without needing to try. Upon hearing this Utris was thrilled since it meant less work for him and Iais asked him if he wanted to give all living things age and Utris happily agreed. Little did Utris know Titans where included in all living things so Iais included them too and thus Titans had an expiry date, albeit a very long one. But this was the best Iais could do at the time and he didn't stop trying.