after the infection was over and you found an antidote that saved killua you and alluka you Gon and killua set out to find other survivors besides Dylan, Milo, miles, Nate, and Sage. And the girls Nala gons girlfriend, Sabine, alluka, and erica you and killua started dating by the way. You Gon and killua set out to find more sirviros and found a abandoned building with survivors hiding from the infected and brought them to your mini villlage. Also it's been 5 years, you Nala Gon Killua and the others are now 18