Neku followed silently in the forest, until they got to the clearing with the giant creature. He grabbed his flame pin and formed a fire around the beast, damaging it. He then struck it with lightning a few times. He wasn't exactly sure on if it was dead, but he would leave that to the others to decide. He grabbed his energy pin and held it ready to shoot again if the beast was alive. He decided to go ahead and do it for good measure, well and it began to get up and run at them. He shot about 10 rather large energy shots at the beast. It didn't move this time so he decided it was dead.
He was rather curious as to why these kids lost there souls in the first place. Was it kinda like how he lost his memory? No, that wasn't really the same, or was it? He shrugged it off and decided to just help the kids. "So now what?" He said, placing his pins back into his pocket.