Icaro could be seen often aloof and daydreaming in class thanks to his disguise but actively tries to make his disguise work through modern tech thanks to his small mechanical knowledge, making the eyes and mouth make more sense to speak with everyone. His ghost arms can actually go out through the sleeves for convenience when needed.
He has a very curious mind on different kinds of things and has the possibility to ask some weird questions just to know the whole extent of the conversation and/or situation. This actually helps him how he contributes in the charity drive, sometimes going the extra length to give it a little extra for his contributions.
Though really hesistant, he's pretty good in battle.