Complex sentence: The "Kuroko no Basuke" manga has sold 9 million units in Japan as of September 2012; individual volumes frequently appeared on the lists of best-selling manga there, and many editions has been in 2012 Top-Selling Manga.
Split into simpler sentences: The "Kuroko no Basuke" manga has sold nine million units in Japan as of September 2012. Individual volumes frequently appeared on the lists of best-selling manga in Japan, and many editions have been in the 2012 Top-Selling Manga.