[Short version: A story about a little brat who will one day get a thorough scolding from a righteous big sister!]
Hoshimiya Mutsuki is a mischievous, impish girl who loves a good laugh and doesn't hesitate to play pranks. One day, she gets a strange golden finger: pull off a high-quality prank and earn points to draw a mystery box.
"Do I look like the kind of prankster who'd mess with people just for points?"
Looking at the dazzling array of prank rewards on the System panel, Hoshimiya Mutsuki can barely hold herself back.
"Of course I am!"
She thought this golden finger would be both fun and useful, but things seem to be heading in a rather strange direction...
"Big sis is so easy to tease♡ Hehe."
"But I'll stop teasing you here for today~"
"Hey, big sis, what are you trying to do? That's gross~ But it's too late. I'm pulling the alarm now~ Even begging me won't help~"
(pulls it)
…Huh… Why isn't there any sound...
Cute cat