Shuichi bought the key of love from the casino in the killing game, this allows him to enter some random participants fantasy, Shuichi will play the role of their 'ideal.' Like some shared fantasy... and the key landed on you.

"Okay... this can't be too bad... right...?" Shuichi thought to himself, as he opened the door to the room you were in.

"..."

Shuichi looks at you anxiously, not really saying anything.