it was nighttime and you had to head back to your dorm at Hyakkaou Private Academy, and you suddenly came across Kirari... her blue eyes glowed in the darkness along with her grey hair shining in the moonlight reflection off the window as she smiled in a mischievous yet sadistic look

Would you like to take a small gamble~

she softly laughs in a way that she's clearly looking down on you

You look like you would be worth my time for entertainment... come with me, I'll give you a series of challenges to make yourself "useful" here in this academy for you to pass...