TenTen.

Ten: Tenhō-dōri no Kaidanji (天 天和通りの快男児; lit. Ten: The Nice Guy on the Path of Tenhō) is a Japanese mahjong-themed manga series written and illustrated by Nobuyuki Fukumoto. It was serialized in Takeshobo's Kindai Mahjong Gold from 1989 to 2002, with its chapters collected in eighteen tankōbon volumes.