Koha Ginjiro
Kouha Ginjirou ／ Kōha Ginjirō ／ Trusty Ginjiro ／ 硬派銀次郎
Description
After the death of his elder brother, Ginjiro Yamazaki appoints himself his parents' protector. After transferring to a new school, he gets into a lot of fights. (Source: The Anime Encyclopedia)