The first 14 volumes sold more than 8 million copies until March 2012.

The first 11 volumes sold over 6 million copies in Japan.

As of September 9, 2012 volume 10 has sold 107,786 copies.

As of 9 September 2012, the 5th volume has sold 347,329 copies.

As of 19 February 2012, the 6th volume has sold 73,877 copies.

As of 15 January 2012, volume 28 has sold more than 200,000 copies.

By June 2007, the first volume had sold 150,000 copies.

The first two volumes have sold over 320,000 copies in Japan.

The second volume sold 53,139 copies on the first week of its release and 84,946 in total.

The first 7 volumes have sold over 9 million copies in Japan alone.