The life of Go master Wu Qingyuan from his meteoric rise as a child prodigy to fame and fortune as a revolutionary strategic thinker, as well as the tumultuous conflicts between his homeland of China and his adopted nation of Japan.

When social worker Rika is sent to check on a traumatized old lady whose family have moved in at the site of the notorious Saeki family murder case, she unwittingly unleashes a cycle of terror that is transmitted via its victims further and further from its original source.