With no other good place in mind, Cyanide brought the katana-wielding girl to his hideout, Aterra Headquarters. He had attempted to convince the girl to just wait where she was and he would bring her food, but she didn't believe him and thought he was just going to leave. But why would Cyanide leave before learning about the whole deal with 'auras'? He tried persuading the girl with that reason, but she once again stubbornly refused to listen.
With no other alternative in mind apart from letting the girl starve to death, Cyanide was forced to take her to his hideout. This meant exposing his home's location, but there was not much he could do. This girl didn't pose much of a threat to Cyanide even if she did turn hostile, though, so it wasn't all that bad. The only thing Cyanide regretted was not leaving some emergency rations in the convenience store in preparation for a time like this.
Once they arrived, the girl blinked a few times in surprise.