A young man applies to become an apprentice to a legendary female ninja master. But what awaited him was not only rigorous training ――"ninpo training" full of temptation and lewdness....! Training that progresses according to the rhythm, H events that suddenly occur under certain conditions, And by overcoming training, you will be freed up in a variety of positions and costumes. Will he be able to become a true disciple, or will he be squeezed out by his master first――. An immersive 3D training simulation game is here!