Zheng, a boy who likes meat more than anyone else. The author who was overweight as a child was most afraid of checking his weight all his life. The first love confession also failed because it was too bloated. He tried hundreds of ways to lose weight, but failed every time until he met the black bean diet. ...

The author who successfully lost weight with black beans visited the Korean portal website for more than 200,000 times, and the photos with successful weight loss were published online for more than 900,000 times.

The author's successful case of losing weight was reported by major media. These programs include the most popular channels "Focus Topics" and "This Morning" of MBC and "World Morning" of KBS.