(Story Contains Different Scenes At Every Part.) [I Respect Your Opinions On Your Ships. But Please Respect Mine.] Once Upon A Time, One Little Block Fell From The Sky. She Started Something Big. And When I Say Big, I Mean Big. After Many Numberblocks Have Been Figured Out, They Wanted To Know How It Feels Like To Be Together. Well... Too Close For Together. As The Dangers Rise... And The Loved Ones Are Nearly Lost.. They Have To Get Back Together Some Way Or The Other. ✧•°'Enjoy'°•✧

Basically,they are all humans. Yes,they can travel between Numberland and the human world. And they still have the ability to combine and all that.