I promise you .. King / Harlequin x Reader
In addition to the Seven Deadly Sins Envy, Wrath, Lust, Greed, Gluttony, Sloth, and Pride, an eighth was considered an equal danger: Despond. This sin was an outlook of gloom and despair, chronic hopelessness. This sin was the Raven sin. You.
Also apart from the six known clans: The Demons, Goddesses, Giants, Fairies, Druids, and Vampires; there is a seventh, known as the shapeshifters. They are able to become anything and anyone and live for around 2000 years. You reside in this clan.
This story begins on the day Elizabeth met Meliodas in the tavern. It's the whole series just now it has you in it! :)