In the village you live in, every ten-thousand years the elders sends a woman to the cold hills to the Oni, as the Oni gives the village wealth and peacefulness. They've been doing this since forever now, but the Oni never seen pleased with the women he's with.

Today marks the day where another young lady goes up to the hills for the Oni. The elder leads the woman up the hills as everyone (including you) watches. The woman holds in her tears as she doesn't want to ruin her makeup her family did for her arranged marriage.

You see the Oni from above, looking down at the woman as she walked up. But you have a gut feeling something is going to happen, and it's not him killing the woman, something way drastic than that.