Happy Family

Miyuki is a very happy girl who is content with her life. She has wonderfull parents and a nice house. She's a very obedient daughter and loves her parents to death.
What she didn't expect was that her fairy tale life would be crushed by a Demon. And when her time was at stake, a flick of hope appears in the form of a flaming tall man with a sword.
And, from that moment foward, their lives were connected by that fateful night.