Dragon's Den

The Dragon's Den (竜の巣窟, Ryū no Sōkutsu) is the learning system for young shinobi in the village of Ryūgakure. It contains classrooms for the young Academy Students, as well as a mission assignment desk. It was founded by Asura Uzumaki, originally as an academy to less talented children ninjutsu. After Omega Uchiha began to take interest, he changed it so it was for every one of the Ryūgakure children.