Souls of Elysium

Souls of Elysium offers storyline quest starting at Leo, you will find him in Danger Room, it can be accessed through every temple.

You've come to Danger Room to find answers… but first you have to gain the trust of Angel, do his tasks for both additional rewards and access to later quests, ask him for your first or next task (hi → task).

Leo represents the forces of good in the battle for Souls Of Elysium.

If you seek knowledge what monster belongs to what tier for Leo's task, you'll find three books near him with low/mid/high tier listed in them.