Its just a short WINRINA story, around 2-3 chaps I think? Karina and Winter has been dating for a while but K feels like she's falling out of love with W and wants to break up with her. She tells Ningning and Giselle about it and they got mad at her.
Winter then had to leave for work and while she's gone Karina realize how much she's been neglecting Winter and how much she still loves her. She also realize that Winter probably knows she plans to break up with her and how bad she hurt W.