Tales of the Garcia Clan

A family who has been at war with their sworn rivals for years. Each battle they have fought they have lost a lot of loved ones. Four brothers who have fought to keep each other alive. In this story three brothers parish in this war, leaving one brother to survive and fight so he can avenge his fallen loved ones and restore honor to his family. In order for him to win he would need help from some friends that have survived this war. Memories of his fallen brothers to keep him alive and focused on the objective. Who is this last Ronin?