Yama Ryu.
His fortitude is spoken in hushes. A visceral fear overcomes those that witness his ferocity. For Ryuji Yamaoka, that nickname puts him at the top of the crime syndicate world. But every man has his weaknesses.
Ryuji ends up in the hospital one day, where he encounters Grace, a whimsical, cartoonish girl born from dream technology. Trouble comes knocking from a rival gang, looking to take advantage of Grace’s human augmentation abilities. Together, Ryuji and Grace are roped into turf wars, face a regretful past that connect the two, and find themselves deep in a grand scheme with the future of Japan’s yakuza on the line.