Weird think that they knew about donut or pasta, I'm pretty sure that they aren't even see them. The only legit reason explain why they knew that is the predecessor off those yukkuri is a pet (not the mother because no factory gonna use pet (even abandoned one) as a breeder)
*Smirk**Moving**Flap-flap**Flap-flap*Prinche will save ush!Where ish it?Surely someone will come to help us!Kya!Reimu will find a wild Marisa...Reimyu will have misther pasta!If you get out of here...Reimu wants to eat mister donut!