![1boy aion_(warpfield) body_armor book boots cat clothes_writing commentary_request facing_away first_aid_kit greyscale helmet highres home_security male_focus monochrome neet original sitting spotlight wand rating:s score:5 post #2732572](/cdn_image/preview/6f/1b/6f1b29475246f0c1ed98da20ef323743.jpg)
「自宅警備隊」 "home security force", 「自宅警備員」 "home security guard", and variants.
Euphemism for NEET and/or hikikomori.
One variety takes the gag to the extreme in a parody of SWAT teams, complete with tactical clothes such as load bearing vests, helmets, etc.; see ja.wikipedia.