If someone wondered why it focused on the candy, I believe that it's because giving a candy in return on white day have the meaning of "I love you too".
@ashax Can't really say if outdated or not since we don't have that stuff here in germany. Even Valentines day isn't that much of a deal here. I just know that different types have different meanings but i am sure you can look online at that kinda stuff
Oh god re-reading this is good for the soul. Anyone else notice when he is asking if they have seen Igarishi, he is using his fingers to make the "small" sign.