[Machine Translation] During the Warring States Period, a baby was born during the Battle of Nagashino. The child caught the attention of Tamba, a member of the Hosokawa family. The child was picked up at the whim of the cruel and inhumane Tamba, and was a misshapen creature with a large hump on its temple. However, the child, named "Kobu," gradually begins to show the natural disposition of a ninja. After being entrusted by Tamba to Hakuun, an old master of Ranba, "Kobu" began to develop his talent through training. But what awaits him is an unforgivable fate. A masterpiece of historical fiction.