[Ah wow it's weird to have someone touch it. Like, he can feel it, but at the same time, not really? There's no nerves or anything in the gem, it's just...hm. It's hard to describe. Asriel hums and pulls his shirt down, turning to face Chara again.]

Yeah. I guess having it on your back is weird, 'cause I've seen them on people's foreheads and hands and chests...and sometimes one of their eyes is a gem, too! But I don't see a lot of backs.