Giant Mouse

Giant Mouse is an unnamed Rat that was the Deceased Guardian of the Four Noble Clans.

Appearence
Giant Mouse resembles a Slender Dog Size Rat with dark gray fur and yellow eyes.

Abilities
A Giant Mouse is a skilled sensor can detect their targets from a great distance, as well as differentiate the characters by their chakra signature alone. It's various characters have commented on the 'feel' of a person's chakra and similar comments regarding the ability to sense high levels of chakra a little, leading to the possibility that chakra sensing is merely a more refined version of this by either teaching or being simply born more sensitive.

Background
The rat has a bigger role as a babysitter taking good care of Kusanagi Gekko and Laura Gekko's Children, Paul Gekko, Kyoji Gekko, Mira Gekko, Sōma Gekko, Kaede Gekko, Shunji Gekko and Mikazuchi no Mikoto. The Giant Mouse has the role to protect baby Paul Kiske. After it's Death, it's grave was written on the Stone Tablet in the Temple of Ragnarok.