Is It a Girl? Is It a Boy!? is the 12th chapter of the Dr. Slump manga.
The first days with Gatchan in the Norimaki Residence. It is revealed that Gatchan can eat everything and survive to fall from a very high height. While giving him a bath, it is shown that Gatchan has wings. Arale Norimaki thinks Gatchan is a girl, but Senbei Norimaki is not sure of this. Gatchan is an angel.