Fantasy

In a world of Monsters and Mythical Creatures, he was reborn.
    Not as a Human, but as a Monster.
    'So you're telling me I can't leave this place?'
    [You must first clear the Dungeon's Ten Floors.]
    'Only then, will I be able to check out this new world?'
    [You must build your strength.]
    'By using my “Devourer” and “Evolving Monster” Unique Titles, huh?'