Only When Waves Strike the Reefs Can They Create Beautiful Spray

"Boss, what book are you reading?" Yahiko walked up to Yun Chuan's desk and curiously looked at the cover. After seeing it clearly, he froze for a moment before blurting out, "Abnormal Psychology?" He understood what "abnormal" meant, and he understood what "psychology" meant. Didn't it literally mean the study of the human mind? But what the hell was "Abnormal Psychology"? Could it be a book studying abnormal minds? Yahiko subconsciously turned to look at the books on the shelf.