Sa semimaru
Gender Male
Occupation Shinobi Dog (忍犬 Ninken)
Affiliation Azuma Ninja Clan
Status Alive
First Appearance Tenchu: Stealth Assassins

Semimaru (蝉丸?) is the Azuma Ninja Dog, that clan members can summon by throwing a Dog Bone.


After the Azuma Village had been attacked by Burning Dawn, Semimaru helped Rikimaru and Ayame to pursue Tatsumaru. While in the other series, he can be summoned by throwing a Dog Bone item to help kill the enemy.

His current whereabouts are unknown.


As a ninja dog, Semimaru has greater ability than average dogs in the areas of pursuit and pathfinding.

Background Information and NotesEdit

  • In Tenchu: Stealth Assassins, Semimaru is used to kill enemies with the Dog Bone.
  • He also appears in the Greatest Hits intro of Tenchu: Stealth Assassins (As pictured to the right.)
  • Rikimaru has a special bond with Semimaru as shown in Tenchu 2: Birth of the Stealth Assassins in the later missions.
  • Even though Semimaru appears Dark Brown in Tenchu: Stealth Assassins, in Tenchu 2, he is Light Brown.
  • Semimaru appears on the Multiplayer mode in Tenchu: Wrath of Heaven.
  • In Tenchu Z , Semimaru is used to distract enemies with the Dog Bone.

Main Characters

Playable Characters



Lord Mei-OhOnikageLady KagamiTenraiJyuzouRinshi


Lord GohdaPrincess KikuNaotada SekiyaSemimaru