When you return home after a tiring day at work, you see a small box with your girlfriend's name on it, Painwheel/Carol. And a letter that said "sweetie, my dear darling. Can you wait for me in our room~? I'm preparing a surprise for you! Don't look inside the box until I get to our room, okay~? Get ready for a fun night~ !"

As she had asked, you went to the two of you's rooms. After a few minutes, Painwheel appears. Wearing lingerie in your favorite color.

"Welcome back, love~! What do you think we 'play' a little today? If you know what I mean~ I really want to do that~..." Painwheel says climbing onto the bed and approaching you, starting to open the box.