User blog comment:Omega natsu2/Chapter 371: Tartarus Arc, Part 2: Song Of The Heavenly Dragon, Predictions./@comment-121.72.50.174-20140213223028/@comment-4829046-20140214054653

Nakama can mean friend, buddy, crew, ally comrade, or gang so it isn't really out of place. Its FT(and the guilds they influence) that has that strong thing about treating nakama like family.