This cube craft paper toy is Saitama, the main protagonist of the ongoing Japanese webcomic One-Punch Man and the most powerful hero alive, there are normal and serious two versions, created by Cubeecraft.
Saitama faces a self-imposed existential crisis, as he is now too powerful to gain any thrill from his deeds.
He registered with the Hero Association as a C-Class and eventually made a big leap to become a B-Class Superhero and is tasked to defend Z-City against Mysterious Beings. Under the Hero Association, he is given the name Caped Baldy.
Saitama is a bald, ordinary looking man with a thin, but well-built physique and of average height and weight. He claims to have lost all of his hair suddenly and prematurely as a result of the toll taken on his body by his intense hero training. Three years before the story line, Saitama had spiky, black hair and brown eyes that are usually represented by dots.
Saitama is usually deliberately drawn in a simpler style than all the other characters, with an elliptical shaped head and only a simple mouth and eyes. When drawn in a more serious style with more detail, Saitama is revealed to have sharp features, dangerous looking eyes, and a chiseled musculature. Even his posture undergoes a metamorphosis, with a slack posture and sloping elbows when lax, while possessing a straightened posture and squared shoulders when serious. His costume is a plain yellow jumpsuit with a short zipper at the collar and a belt. The costume is finished out by a red ensemble of boots, gloves and a white or red cape. [Source: wikia]
You can download this papercraft toy template here: One-Punch Man - Saitama Cube Craft Free Paper Toy Download