Kokuran

Kokuran「黒蘭」
Manga Muscle Girls ( 漫画の筋肉娘)



Kadokawa published 2 series by KONDOH Rururu (近藤るるる).  The first was Kokuran (黒蘭) which ran for 4 volumes.  The second was Kokuran ~Hangyaku Kurokami~ (黒蘭~反逆の黒髪~) which ran for 2 volumes. There is a cute muscle girl who appears in both series named Ominaeshi (オミナエシ), which is the Japanese name for the Patrinia plant.  She is the little sister of a buff male character in the series.  She doesn't get a lot of panels in the book, though it's worth hunting the book down in my opinion.  All the volumes are available at Amazon JP.  I found this manga through a nice Japanese website called 筋肉娘ドットコム.