The executioner's son - The Seven Deadly Sins

Gedeon, the son of Zeldris and Gelda, somehow managed to get through a crack in the ancient seal despite being able to beat a few commandments at once, despite this Gedeon is still only biologically 15.
He quickly joins the holy knights of Liones, quickly becoming an apprentice holy knight directly under Hendrickson. Gedeon, the greatest threat to the seven deadly sins.

tw: there will be torture scenes and potential lemon/limes in this book and some swearing. Besides for the swearing there will be a warning before each mature scene occurs, don't worry!

I do not own The Seven deadly sins or its characters besides Gedeon of course.