ISUTOSHIISUTOSHI is a published manga author with a penchant for including muscle girls in his works.
ISU ROOM, his website isn't updated that frequently, but you can find a list of some of his works and contributions over at his entry at the
Doujinshi DB project. I first saw one of his buff characters in his manga, Tende Freeze. Another buff character appeared in an earlier series called High School Planet Prowler:

... and I continued to follow the author to his current series,
Aiki ( 愛気 ). The manga is still currently being published in serial format in
Young King Monthly anthology. The first chapter introduces a very tall and buff beauty. Most of the female fighters in the series are very cute and very busty, which is always a good combination. Another muscular character, a former love interest for the main character, gets introduced later in the series. Definitely worth checking this series out if you haven't yet. Scanlations of it are known to exist, but you'll get the best quality if you pick up the original books from
Amazon JP. Or I recommend online shop
YesAsia, which also carries his manga works. Here's some samples from the first book:

And some samples of the previously cute, busty girls:

I mentioned in
an earlier journal entry about Kanesada Keishi that ISUTOSHI made a contribution to the same issue of COMIC Kairakuten Beast ( 2008-07 ) that featured Kanesada's warrior gal with the great abs. The muscular girl depicted by ISUTOSHI here is more buff than beautiful, but I'm mentioning it here as another example of his fondness for putting muscle on manga girls. This short story was also included in an adult collection of his works called
Ero-Isu. Here's the cover for the magazine along with a sample page where the girl appears:

His doujinshi contributions shouldn't be overlooked either. These are a little harder to find, and he typically does more pin-ups than stories. Still, if you're adventurous, you can do some searching for his art and stories done by Doujinshi circle Gerumaru in the Renge series. Here are some samples of what I mean:

I hope this information is useful to some people out there. Leave a comment if you liked this, I like to receive comments and helps me to keep motivated to share other discoveries. Lately, I've found it harder to write these features up. It's partly because they're time consuming, partly because I spend way too much time doing research to make sure I'm not missing anything, and partly because I'm becoming a little intimidated by the backlog of items I have in my
feature queue. I might start doing shorter features in order to get through things faster. For readers of my journal, what do you think? More detailed but less frequent features, or less detailed but more frequent?
Related LinksISU ROOM: Isutoshi WebsiteIsutoshi @ Doujinshi DBAIKI @ Amazon JPISUTOSHI @ YesAsiaEro Isu ( エロいす ) WANI MAGAZINE COMICS SPECIAL @ Amazon JP