Bad Thinking Diary is a polarising GL (Girls' Love) manhwa that is often described as "trashy junk food"—addictive, messy, and visually stunning, but filled with frustrating character choices.

(What went through your mind?)

Bad Thinking Diary stands out because it refuses to romanticize its relationship as a standard, healthy fairy tale. Instead, it dives headfirst into complex psychological territory. The Toxicity of Codependency

The "Visuals vs. Stress" struggle (the art is 10/10, but the miscommunication is 100/10). Tagging the creator/artist @rangrarii.

The Bad Thinking Diary is this bias made textual. It is your brain’s attempt to "protect" you by anticipating every possible threat. However, because we no longer live on the savanna, this protection manifests as rumination, self-doubt, and imposter syndrome.

The series is credited with elevating the demand for high-production, psychologically complex Girls’ Love webtoons. It proved that the GL audience has a massive appetite for dark, mature dramas, moving away from purely wholesome or comedic romance tropes.