The Legendary bad boy is an elite office worker!?

"Please make me your disciple!!!" Souta, who was about to graduate from high school, felt frustrated that he hadn't become the kind of ideal delinquent he had always imagined. On his way home one day, a lame-looking office worker with a neatly parted hairstyle and glasses who had gotten into trouble with Souta's delinquent friends ended up completely defeating them! To his shock, that office worker turned out to be Morohoshi Keigo, the legendary delinquent Souta had always admired! From that day on, Souta starts visiting Morohoshi whenever he has free time, determined to become his apprentice. Why did he quit being a delinquent? Why is he pretending to be such a lame office worker? As Souta finds himself constantly thinking about Morohoshi, his feelings begin to change in an unexpected way...?! (Source: Cosmic Shuppan, translated) Note: Includes one extra chapter.