Not very sure, but maybe Kuroko No Basuke and Kurogane?
And lel good job with getting your nephew into manga XD
bakuman :)
i think manga is better than games ╮(￣▽￣)╭
Haikyuu!!
Shokugeki no souma <-- maybe not this it has some ecchi nudity with people having foodgaisms
Hyakunen Renbo
Hajimete No Aku
Kaichou wa maid-sama
penguin revolution
Twin Star Exorcist
Noragami(?)
Im srry i dont know that many that would suite him you might want to check these to see if they would be alright for him to read.
hemm.. how about Prince of Tennis?
so..my 8yo nephew saw me reading yaoi manga (thank god it was not the xxx part (￣∇￣") )
but it made him curious and want to read it too..so i gave him "hajime no ippo"..and now i think it's a good idea to give him that, coz now he want to be like ippo..never give up on his dream to be a boxer..
and my nephew said he want to be a boxer too..LOL..
he keep asking for another manga too (⊙…⊙ )
so maybe anyone can help with reccomendation manga for a little kid..maybe an inspirational one like hajime no ippo..