Haven´t really watched many anime... not to even mention unpopular anime. So i´ll mention the one i liked and i think it´s the less popular out of the ones i have watched.
Busou Renkin. Preety good, similar plot to FMA; alchemy, homunculus, etc. good watch.
Busou Renkin. Preety good, similar plot to FMA; alchemy, homunculus, etc. good watch.