1girl assault_rifle bangs blush breasts covered_navel girls'_frontline green_eyes grey_hair gun h&k_hk416 h&k_hk45 hair_ornament handgun highres hk416_(girls'_frontline) hk416_(midnight_evangelion)_(girls'_frontline) holding holding_gun holding_weapon indoors large_breasts long_hair looking_at_viewer monitor official_alternate_costume parted_lips rifle shumeia solo teardrop_facial_mark trigger_discipline weapon