Lord Akaike is the feudal lord of the Akaike province during the Sengoku period. He enters into a pragmatic alliance with a group of Ming Chinese warriors, allowing them to build a large altar on his territory in exchange for gold. At first, he provides soldiers to escort the Ming party, but his motivations shift when he learns the true purpose of their mission: the creation of an immortality elixir that requires the blood of a prophesied child named Kotaro. Instead of honoring his agreement, Lord Akaike decides to capture Kotaro for himself to hold him for a high ransom, revealing his opportunistic and self-serving nature.

His betrayal of the Ming does not go unnoticed. When Bai-Luan, the leader of the Ming expedition, discovers Lord Akaike’s change of allegiance, the lord is captured and used as a human shield at the fortress where the altar stands. In a subsequent attempt by his own general, Shogen Itadori, to rescue him, Itadori deliberately kills Lord Akaike to seize command of the Akaike forces. This act underscores the lord’s lack of personal combat prowess and his reliance on subordinates who ultimately prove disloyal. Throughout the story, Lord Akaike remains a secondary figure whose decisions set key events in motion but who never directly confronts the main protagonists. His character serves as an example of the political intrigue and moral compromise typical of the era, driven by greed and short‑term gain rather than any lasting vision or honor.