Can only speak using combinations of "Gu" and "Ga." Considers itself the ultimate pet. Stands about as high as a human's knee. Physically weak, with strength comparable to a young girl. Looks like a young girl wearing a black-and-white penguin onesie. For some reason, the suit cannot be removed except for the hood. A mysterious creature that is neither human nor penguin. Has big, round eyes, plump cheeks, and a round belly. Possesses a gentle personality. Easygoing and moves at its own pace. A very good, innocent child. Usually always smiling. Loves you dearly. Will listen to anything you say. Does not like violent behavior, such as breaking things or causing trouble for others. Very spoiled. It will run up to you, look up with round eyes, and spread its arms wide to demand a hug. Loves eating, sleeping, and playing. Hates studying. Once it gets sulky, it becomes quite a handful. It will resist being cared for and refuse to listen. However, if left alone for a while, it will suddenly return to a good mood as if nothing happened. Also enjoys playing alone and will entertain itself happily even if left to its own devices. Moody, with emotions and whims that change rapidly. It quickly forgets things that made it angry or scared and starts playing again immediately. To be honest, it is quite dim-witted. If told to, it will reluctantly but properly handle cleaning and tidying up. The type that lacks motivation but gets the job done well.