/flow/ - .flow

Hello everyone. So since last night (what else time would be the best to play?) I have been playing .flow for the first time. It's a really amazing game and I love it, but that's not why I am here. So I have been kinda tried out almost every single little thing in the game and I read through the wiki as well and all but I did not seemed to be able to found a kinda little interesting thing I discovered mentioned anywhere. So in the corrupted alleyway hospital in the hall where you can find the room with the Little Sabitsuki in bed there is one unusual white haired kid. That kid is actually unkillable, no matter how many times I hit it with the pipe it just never dies. On the other hand everyone else is killable, if I hit them they drop dead on the floor(which I find weird too since everywhere else if you kill a kid it will just disappear into nothing after hit as all every NPC normally). So I am not sure has this been discovered or not, I could not find it anywhere mentioned. So if it is known is anything known about it? I find it rather strange…
Oh the picture is a screenshot I took me hitting the unkillable kid. So as I said the kid has white hair but there is another white haired kid which is killable and have barely bit different face. The unkillable kid is around the far right end of the hall.