Vile Evil Hides Under The Veil

Summary:

To find peace
Amidst clusterf*ck of misery
All I need is but a way
To rewrite my own history!
My mask of sanity slips away
But there’s nobody to tell the tale
No one will be any the wiser
When a vile evil hides under the veil
– Grayback
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Eren Idril died as an old, decrepit, and piss-poor adventurer by the maws of a D-Rank monster. He had a lot of unfulfilled dreams and desires that couldn’t see the light of the day after the light in his own eyes died down.
But fortunately for him and unfortunately for the world, that wasn’t his end. Eren was somehow dived back in time when he was a mere teen, attending Lionheart Academy for adventurers.
When life gives him a second chance, Eren decides to exploit it to its fullest. Experience his vile deeds as he partakes in them without feeling the slightest bit of hesitation.