I'm The Great and Powerful Demon King Victor Lucis who's the Strongest of the Seven Demon Kings, I who have almost conquered the world while fighting the other Demon Kings for territory, but now I lived a quiet and peaceful life after finding the love of my life in a form of a woman wizard whose magic almost rivals mine we fought for months while she tries to protect her Kingdom and I to conquer it.
In our tired state I managed to trap her in a barrier there and then I tell her that she is one of the humans who have manage to fight me this long and in my full strength nevertheless and I'll give her one final wish before I destroy her Kingdom I wasn't expecting that kind of answer from her.
"Since the day the prophet tells me I will bring ruin to the kingdom because of my overwhelming magic that I would lure magical beast since then I was locked in the castle while being teach to control my magic and I wanted to prove them wrong that I was their weapon, I volunteered to defeat you, Demon King yet I'm the one on my knees."
"Your life may be tragic but here you are a brave warrior who have fought and injured me that's why I gave you my respect."
"Then take me with you, that is my wish for you."
I never managed to go to the kingdom after she said that words that I will never forget and never regret in all my life. it has been years in that faithful day and I have become a wonderful Husband to my dearest wife, a doting parent to my children and future grandchildren.
But life isn't always happily ever after, as a new war begun a new Demon King emerge trying to conquer the world that I fail to do, but this time the Humans are ready and they summon a Heroes from another world to fight on their behalf.
So Why!?, why are the so-called heroes going to my territory when the New Demon King is on the other side of the continent.
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This is a story of a Demon King teaching a group of summoned heroes about his world and the other Demon Kings while making sure his children didn't join their adventure.
There are seven total of Demon Kings representing the Cardinal Sins.
Demon King Victor Lucis represent the Sin of Gluttony, hunger for power and territory back in his old days.