This story is a sequel to A Few Days Prior
A mere day before the beginning of the inter-school Friendship Games competition, an oblivious Aria Blaze takes a lunch break at the mall, and finds herself seated with a disgustingly cute and quirky couple. She's already had a bad day, but whether she ignores or interacts with them, they seem to find some way to make it even worse. It only devolves from there.
(Sex tag is for some crude language and discussion from a certain Siren)