Hozuki no Reitetsu (or Hozuki’s Coolheadedness) is a Manga and Anime by Natsumi Eguchi. Both are heavily episodic and revolve around the adventures of Hozuki the Ogre, chief aide to Demon King Enma (lord of the Buddhist underworlds).
As the title implies, Hozuki usually succeeds through a mix of cool, cunning, and level-headedness – though a certain threat of eminent violence is also present. In spite of this, the series is a comedy. Generally speaking, the ogre is the only character to show a lick of common sense, though he will praise it in others when he sees it.