Child Emperor is a S-Class Hero, Rank 5

Child Emperor is the youngest member of the association. He prefers to use the Hero Association HQ tech room for advantages and aid to the S-Class Heroes. However, when he is called to the frontlines, he has a backpack that holds a bunch of weapons and has robotic, spider-like arms/legs that hold him up to face his opponents. (Like Doctor Octopus)

He is very observent when assessing the situation and formulating plans in a calm and calculated manner. He is a young genius and values his education. This can be seen when he mentions about going to cram school even after hearing about the Earth being in danger. He easily gets mad when being labeled as childish by others.

If a male were to try his voice, do make your voice as high as possible without squeaking. 

If a female were to try this voice, make your voice sound like a young boy by using a "tomboyish" tone.

I'm looking for a somewhat high-pitched and child-like voice, with a bit of a mature and sophisticated nature despite the age. (Maybe like Luffy from One Piece, Miles "Tails" Prower from the Sonic franchise, or Naruto if you are female)