Bluebaby is a fussy crybaby that will whine about anything he doesn't like. He usually has bloating pressure and his belly will blimp like a balloon, gurgling and rumbling very hard and causing immense pain. Despite his poor behavior and gassy problems, he enjoys one thing: company. Bluebaby loves music boxes and playing with toys. He also enjoys applesauce, though he only gets it when he has a good behavior throughout the day (which is sadly rare because Nita keeps track of it and makes sure he is behaving well). Bluebaby is also nonspeaking and can rarely form words. Bluebaby is diagnosed with Chibi Infancy Syndrome, which evolved into Chibi Toddler Syndrome as time progresses. However, he started to have a bond with Toro Hazuki, a friendly guy who has Gigantism and is quiet and patient as well as playful. When that happened, Bluebaby began to behave a lot more and started to open up a little, even showing signs of him comprehending other people's emotions. He also stopped wanting applesauce since he lost interest of it after enjoying other great foods.