What do I do now? (KNY x Modern!Reader)

(y/n)(l/n) is a normal girl who spends most her days watching anime or reading manga and fanfics. She just realized that Kimetsu no yaiba (Demon Slayer) season 2 is out and she's planing on watching it. First she has to head out to the store and get some snacks because, you know, snack. (y/n) is totally on cloud 9 and...