The manga was a finalist for the Tezuka Osamu Cultural Prize three times in a row from 2000 to 2002, with the highest number of fan nominations in the first two years.
The German translation of its 44th volume won the Sondermann audience award for international mangacategory, a yearly comic award given for 7 categories by the Frankfurt Book Fair, the Frankfurter Rundschau, Spiegel Online and Comicforum since 2004, on the Frankfurt Book Fair Comics Centre in 2005.
In a 2008 poll by Oricon, Japanese teenagers elected it the most interesting manga.
