Reincarnated as a Troll: Rewriting Another World's Rules with Brute Force

No female lead, a steady-growth story, lord, war, and military command.

Reincarnated into a magic world as a member of the lowliest troll tribe, with nothing going for him but brute strength.

To avoid being treated like an easy source of experience points, the protagonist has no choice but to grow stronger and protect himself.

Using secret arts and traveling through human society, will he ultimately become a noble’s vassal or a lord who rules his own territory?