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, famil...

Tenma is a Middle Schooler who loves playing Mahjong. He doesn't know exactly why, but the freedom it brings him fills his chest with pride. One day, his friends run into some trouble with University Student...