Green Bullet

Original title: グリーンバレット 最強殺し屋伝説国岡[合宿編]

Six girls participate in the boot camp for assassins. The instructor of the boot camp is the legendary hitman, Kunioka. At first, they repel each other, but the girls gradually develop friendships while enduring the hard training. By chance, the girls get involved in a life-threatening battle with a group of anarchist hitmen.