The Grineer Manics aren't pushovers. Nagai and Aoi will remember this painful lesson. They are lucky their isekai'd rabbit limbs are sturdy enough to remain attached onto their bodies after trying to fist fight a Grineer manic in full combat armor. That armor will be sold to the nearest Grineer outpost, together with the "confiscated" gene-stamps. Not for money, but because it'll make Nagai and Aoi feel better.