A man wakes up to find himself a baby.

He soon realizes he has been reborn as the legitimate heir of a prestigious family in the Sengoku period.

However, the reality of this prestigious family is far different from what he had imagined.

If things continue this way, ruin is inevitable, and only death awaits.

How will he survive? What does he truly desire?

The boy constantly asks himself these questions.

To secure a slightly better future, he struggles against an unyielding reality.

Sometimes he grovels in submission, and sometimes he bids farewell to friends with tears.

Often he is clueless, tossed about by the currents of the era.

Yet, the flame burning in the boy's eyes never wavers.

Now, the boy can rise to a position where he holds the fate of not just himself, but of all Hinomoto (Japan).

Should the boy desire it.

To devour or be devoured.

This is the chronicle of a young boy who, with unwavering resolve, fights and rises to power through his martial might.

Senbu Seiden.