The Riddle Of Our Formula

An emperor with many rules and three goals
1) To conquer the world.
2) Kill the enemies.
3) NEVER fall in love.
breaks all the rules and leaves his last goal just for her.
.
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She was different to him, her head and tone high, makes deadly eye contact, a damn softie by heart. Only she can be dangerously sweet and filled with venom at the same time, just like a sword with pretty design and a sharp blade or an exquisite rose with pricks.
.
.
He believed in love but never wanted to fall in it...
She thought love was only a being in a fairytale but only for once she wanted to feel the specific zoo in her stomach.
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.
. When the hell meets heaven.