Atsuize Pen-chan

Overview

Watanabe Yuuichi, also known as Pen-chan, loves mahjong. It's just too bad that he's not very good at it. Follow Pen-chan's wins and losses (mostly losses) in a series of short tales about his friends, family, co-workers, and local yakuza until the final conclusion where Pen-chan makes the biggest gamble of his life...

Source: AniList