Zrombo was born into a pretty dark and unknown region of the 3D World. His parents abandoned him very shortly after he came into the world, so he learns off of others. Due to not being properly taught about the world, he is very curious, and most actions that seem normal to 3D world residents are very foreign to him. While looking for a place to stay, he found Pumimbi, and so they reside together now, with Pumimbi acting as a mentor. Despite the lack of a mouth, Zrombo can eat and talk normally. Or well, for the most part, since the way he eats things is by absorbing it through his head as if it were some sort of hologram or jelly-like substance. He really particularly enjoys eating raw spices on their own for some odd reason. Because of that, his favorite "food" is pepper. His eye is ACTUALLY just a flat surface on his head, but that doesn't restrict him from seeing things like any other being would.

His one flat eye is a birth defect; His mother and father have two eyes that are actual eyeballs. Zrombo is still very resentful of his abandonment and wishes to confront his parents about being left on his own. He wants to somehow gain approval of his parents and impress them with how he turned out, but little does he know that his parents couldn't care less about their son and are too busy with their job..