Bad Thinking Diary Jun 2026

As the story unfolds, the manhwa doesn't shy away from exploring the complexities of their evolving bond. Yu-na's past casts a long shadow—she has endured traumatic experiences with men, including a vindictive ex-boyfriend who sought retribution when she ended their relationship. Her life was spared thanks to Min-ji's intervention, creating a foundation of gratitude and loyalty that complicates her romantic feelings.

The "Bad" in the title is often reflected in the characters' actions. They grapple with intense jealousy and a desire to possess the other, which drives the dramatic plotlines. Bad Thinking Diary