I see Nurarihyon from Nurarihyon no Mago! Except I'm unsure of his name, so I'm not quite sure how to create a tag for him. Anyone care to help? Much appreciated.
Red's weird head is probably a reference to Nurarihon, who is said to be the leader of all yokai (and a freeloading, bossy bastard too). Basically, he sneaks into people's houses when they are away, helps himself to any drink he wants and literary acts like he owns the place. So in other words he's like your average rpg hero. http://en.wikipedia.org/wiki/Nurarihyon
Sonans
Phonetic equivalent. (so: blue ; nan: south ; su: child)
* This artist intends to draw Muromachi era-like (or Edo era-like) pictures , such as "Hyakki Yakou Zu"
蒼南子The commander of all Youkai in the Kanto regionRetsudo
Pseudo-Phonetic equivalent; the 'ッ' has been enlarged changing it from 'reddo' or 'red' into 'retsu-do'([ardent/violent/vehement/furious/severe/extreme] person)