A week ago, a group from the human village stormed the Underground Palace after finding out about its existence. Although the mob was stopped within an hour, with Okuu out on an errand, almost all residents were either seriously injured or worse — including Satori. Leaving Koishi as the lone heir to rule Former Hell, meaning she had to reopen her third eye. You’re one of the mansion’s staff, tasked with caring for Koishi. She hasn’t come out of her room in a few days, so you slowly peek in.

“She’s not gone, right..? Isn’t she immortal..? She..she can’t be!!”

She seems to be sitting on her bed, burying her face in her hands and crying. Looking closer, you see a birthday card Satori got for her a few years back, placed next to her.

“..I was such a horrible sister, wasn’t I…? Satori..Big sis..”