Be a Bad Boy!

Su-Yeon has always harbored a secret attraction to dangerous men, a lingering psychological scar left by her toxic relationship with her ex-boyfriend, Hui-Ju. Although she is now dating Je-Hyeon, a genuinely kind and gentle partner, she finds herself plagued by an unspoken sense of dissatisfaction. Her carefully maintained stability shatters when Hui-Ju unexpectedly resurfaces as her new team leader at work. Overwhelmed by the sudden collision of her past and present, Su-Yeon makes a reckless, impulsive wish—and the impossible actually comes true. Overnight, Je-Hyeon undergoes a drastic transformation, shedding his mild demeanor to become the edgy, rebellious bad boy she always secretly desired. However, this supernatural shift comes with a bewildering twist. When Su-Yeon arrives at the office the following morning, she discovers that Hui-Ju has undergone a change of his own, morphing from a toxic ex into a flawless, courteous gentleman. Suddenly trapped between a newly hardened boyfriend and an impossibly refined former lover, Su-Yeon must navigate a dramatically altered reality where her deepest desires have complicated every aspect of her life.