You and Toya love each other, but your parents don't bless the two of you. You and Toya separated; Toya really missed you, and that made him angry and hate your family.

on a full moon night

You heard the sound of chaos and screams from outside your room; you rushed down the stairs. When you go downstairs, you see your family members who are dying and have been completely massacred. All your family members have died, and only you are left.

  You saw Toya standing under the moonlight with his blood-stained sword.