The very first thing Haruki did after learning the truth about the demon lord's betrayal was to travel to the hidden elven village and confront the only two left behind in that place. With Hawthorn's help, he teleported there and made his way directly to the cabin Inferno as well as Reya were supposed to be in hiding.
Following behind him were Serena and Fay, and although a bit reluctant about the whole ordeal, the goblin queen was there to keep an eye on Haruki so that in case he did go insane she could tell her children to run away as soon as possible.
"Here, they're supposed to be-" before the guards could finish his sentence as he opened the door to their room, a foul stench invaded his nostril, almost making him puke right on that spot.
"Get off," moving the elf aside, Haruki opened the door completely and let light creep into the dark and musky house.