Onmyoji's Borrowed Life

My father is an old womanizer. Not long after my grandmother passed away, he brought back a young and beautiful woman. But since the woman came, strange things happened one after another in my house. My father died that night, and my mother died not long after. The weirdest thing was my dad, he was sharpening a knife at the door of the woodshed in the middle of the night. The woman always looked at me strangely. It wasn't until I accidentally bumped into her taking a shower that I realized she actually wanted to...