This article is about the human who is Arashi's owner. For the human who is Gil's owner, see Tetsuo (SSY). For the dog, see Tetsuo.

Tetsuo is son of Tarō. His family owns Arashi, Fubuki and his siblings's mother.

Bear Hunter - Fubuki-gō

He became concerned when Jūzaburō came to pick up one of the puppies to be trained, because they were still very small.