"Use this to entertain yourself with our mutual friend!
[when he opens it, IT'LL EXPLODE.
EXPLODE WITH CONFETTI!
Once it's all out of the way, a very nice chess set will sit snugly in the box, unopened and ready for use.]
[on Itsuki's kitchen table, there should be a large box covered in bright yellow wrapping paper. A blue bow sits on top, along with a note.]