A high school dropout and former bousouzoku who retired to become a fisherman, but after he saved [Morinosuke Yamato](https://anilist.co/character/234857/) he was offered a job at Yamato Construction in the sales department.

After former motorcycle gang leader Yajima Kintaro saves the life of the Yamato Construction Company's CEO, he is offered a job working for the company. However, when it becomes apparent that a corrupt faction of the company is trying to gain full control, Kintaro's moral and physical strengths become more useful than the CEO ever imagined. As he works his way up the career ladder Kintaro is forced to deal with many problems, from confrontations with Yakuza bosses to preventing the collapse of a tunnel. But can an uneducated and rowdy person really make it as a salaryman?

Retired ex-bike gang leader of the "Hasshu" Kintarou Yajima leaves his hometown where he worked as a fisherman until his wife, Akemi, passed away. With his son, Ryouta, they go to Tokyo, where Kintarou would start with his new job: a salaryman. Now, the question is: would Kintarou be able to handle the office work and office politics being a salaryman brings?
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(Source: Manga Planet)