Milk Senbei
Tess asked me about Milk Senbei. Milk Senbe is global sweets?
If this company's boss know about it, he will be feel happy.
Sato seika(I think this company is not big. Japanese only HP.)

Milk Senbei are cheap sweets. Small kids like Milk Senbei. Usually we get Milk Senbei in festivals.
(Next week, local festival is opened in our town. I might try to eat Milk Senbei.)

I think Tess wants how to make Milk Senbei. I'm soryy I don't make it.
We only decorate Milk Senbei with jam.
This HP is how to play Milk Senbei with kods. I think your friend gets hint from this HP.