In the Warring States period, the Saotome and Takigawa clans, being neighboring countries, had engaged in an unending conflict for many years. During this time, the Saotome castle was embroiled in controversy due to information brought by spies. It concerned a secret treasure passed down through generations in the Takigawa clan. However, the map indicating the treasure was inscribed on the tattoo of a female ninja, which could only be revealed when the woman reached her peak. Among the high-ranking officials who dismissed this, only Yoshimura Kyoubu decided to send his son Matagoro to the neighboring Takigawa to ascertain the truth. Although Matagoro was completely lacking in both military and academic skills, he did possess one particular talent: an insatiable libido that far surpassed that of others. With this single weapon, could Matagoro really fulfill his mission?