soulmate

Ella is an illegal fifth child in a world seamlessly controlled by a mysterious Gov, who grants all humans a Soulsice, which leads them to their Soulmate on their 18th birthday. Ella spends her days locked inside, locked inside with her fearful mother and family who only wants her safe. But on a chance night, Ella slips outside for a peek at the world. And on a chance, she meets a boy.
Ella and Felix are in love, but in a world where you could be killed just by existing, the two must face leaving the only lives they've known into a fate decided by their choices they make in the dangerous time they live in.
Even after finding a place where life could possibly continue on, Ella and Felix find themselves whipped up into a war against forces no one can contend with. It is up to them if they will continue on, or perish like many of those stupid enough to find love on their own.