Teppei Ushizume is the main protagonist of the manga called Iron Knight.
He is currently 10 years old. His usual form is human, but changes to an Iron Demon with horn like ears when he needs to fight.
His skin is hard as iron, but it has a weakness. If Teppei overuses his flame abilities, the internal combustion can melt his skin in the process. His destructive feats are street level as he is seen destroying a house. His speed is currently human level while his stamina and durability is unknown. Feats of his strengths include superheated a funnel vortex and turned it into a fire tornado and explosive punches capable of killing demons twice the size of average humans with a single punch. His intelligence is a child's level.