PH white day

HAIII,i have risen from my casket once more to make this i dont know much about the holiday but since i was playing colorfulstage i found out it was a thing,correct me if I'm wrong with the next few things: giving someone candy is like confessing your love giving someone caramel is like saying you're comfortable around them and giving someone marshmallows(?) is like saying "I don't like you(i forgot everything else-) LETS GET ONTO THE STORY: someone left candy in your office but you dont know who so you now have to find out!