A hyperdemintion neptunia x Musashi samurai legend .
One day Nepgear was walking alone , her friends were busy even her sister Neptune is busy .
On her walk she found a strange cave with writings talking about a legendary samurai , but what cought her interest was a weird circle , when she got close the circle shined , and a boy with a weird hair style but strangely look handsome appeared . With this a start of new friendship , and maybe love.
Nepgear x Musashi .
No harem .