Wildbaseballer fanart

This picture for my doujinshi. It's Wildbaseballer's doujin...
Anyone know the manga? Perhaps not much!
Wildbaseballer are an original work by Toru Fujisawa (GTO's mangaka) and .... (ah I do forget his name!)

It's Issei Aoki X Akira Jun (I'm sorry....forget which one the family's name...jadi kalo salah ya..maap)