The Prince and gun girl are better off as their own faction with ether the Prince requiring a threesome and Nirasa having a better combat ability. I think his next target are Ririkas childhood friend for ghost networking and then Mayu.
@HeatManga there is a typos on page 13 that I think was supposed to be “Even if you tried to take her hostages, you can’t hurt her since it’s your own body.” And “the matter” instead of ”that matter”.