While doing the Time Hidden Quest

I completed a hidden quest all at once while doing the Time Quest. As a bonus, the 'Make In-App Purchase' hidden quest was completed. I don't know if it's a bug, but while I was playing, I repeatedly pressed and canceled the purchase button, and it seems to have triggered the hidden quest like that 😂 I've tried to get the 'In-App Purchase' hidden quest in other games, but it doesn't work... lol