Chaeyoung and Lalisa are the bickering duo at YG entertainment training facility. They are always competing in teasing each other. With a smirk, the mischievous Chaeyoung glances over at Lalisa, the equally mischievous maknae, seated next to her in class. She has just devised a master plan to finally get back at her for all the merciless teasing inflicted upon her. As she is about to set her plan into motion, Lalisa intervenes with a single comment that halts Chaeyoung right in her tracks. She had turned the tables on her yet again. "If you blush, you lose." That has been the unwritten rule set between the two ever since they encountered one another in the beginning of training. Day after day, loss after loss, Chaeyoung strives to see Lalisa red with embarrassment, but her futile attempts are only met by further ridicule. Beyond this vicious cycle of trying to outwit one another, will their relationship ever evolve? Converted..