Kitsune

Kitsunes and humans are friends. They visit each other, bring each other goods, and keep each other company. Many people have kitsunes as pets, which make kitsune way more popular than any other animals and creatures there in the Mahō world. Until an incident happens. A very very very greedy person wants all the kitsunes to himself so he can have all the power in the world. Now, no man chooses to be evil just because he wants to be evil, he did it for his happiness, for the one he loves... There is a rumor that if you have all the kitsune powers, you can revive a person to live. He controls a kitsune - a random one he found... that he thought is weak, but he is the kitsune lord. He controls the kitsune and makes it attack one of the most popular and dominant villages in the Country of Fire.
The 4th lord Adonis's wife, Revena, is giving birth to a girl, who they decide to name her Valerie. The baby's birth time is not lucky. Just then an enemy came attacking them. Adonis managed to stop the enemy from taking their baby away. But the enemy is just a diversion. The controlled kitsune destroyed the village.
How do you kill a kitsune? By slaying all the tails down, of course, they didn't get tails for show-off, duh. Adonis managed to slay down 8 tails with only one tail left. But because this kitsune is powerful, it can't be killed. So he sealed the kitsune into his newborn baby, sacrificing him and his wife. As their blood drops on the baby's forehead, the blood disappears as a seal appears on her stomach.
Valerie grow up in a very bad childhood.