The Greatest Celestial Summoner

After a fateful battle with the Primordial Envy, Leviathan, the greatest Explorer the cosmos has ever known, Castor, sacrificed himself to defeat the powerful Sea God and protect his sister.



In what could be described as a Miracle, Castor was reincarnated as Ain in a bizarre world of summons.



With a second chance at life, Ain will rise to the top and explore this uncharted world while protecting it from the ever-growing threat of the Demon-like creatures known as the Xin.