Ryofu "Ren" Housen

About

Anime version
A silent girl who is the greatest and the most powerful warrior of all in the Kingdoms. She was thought as a monster in the mountains, but that all ended-up as being a misunderstanding as she was trying to help her pet dogs. After clearing up the misunderstanding, she became part of Tōtaku's faction. She usually does not show any emotion at all but is really a good-hearted person.

Visual novel version
Called a monster by others due to her ridiculous strength. In truth, she simply wishes to live peacefully with her pets, of which she has about fifty. She loves Kazuto, but initially does not understand the feeling she experiences. When she eats, people who look at her cannot help but stare in awe. In the sequel, Shin Koihime Musō, she joins forces with the Shu kingdom.

(Source: Wikipedia)