ush ▁doll s , ▁cal end ars , ▁key ▁ch ains , ▁and ▁a ▁medal ▁game ▁machine ▁were ▁sold ▁as ▁mer ch and ise ▁for ▁the ▁series . ▁Kon ami ▁also ▁released ▁a ▁collect ible ▁card ▁game ▁series . ▁ ▁Re ception ▁ ▁Popular ity ▁The ▁m anga ▁has ▁sold ▁more ▁than ▁ 2 0 ▁million ▁copies ▁in ▁Japan ; ▁individual ▁volumes ▁frequently ▁appeared ▁on ▁top ▁ten ▁lists ▁of ▁best - s elling ▁m anga ▁there ▁( see ▁table ). ▁Ind ividual ▁volumes ▁have ▁appeared ▁in ▁Diam ond ▁Com ic ▁Dist rib utors ' s ▁lists ▁of ▁ 3 0 0 ▁best - s elling ▁graph ic ▁nov els ▁in ▁North ▁America ▁several ▁times . ▁In ▁ 2 0 1 1 , ▁the ▁Japanese ▁website ▁Am eb a ▁conducted ▁a ▁" Top ▁ 1 0 " ▁online ▁web ▁poll ▁of ▁the ▁" Best ▁Sh ō nen ▁J ump ▁M anga ▁of ▁the ▁ 2 1 st ▁Century " ▁and ▁E yes h ield ▁ 2 1 ▁was ▁placed ▁sevent h , ▁although ▁in ▁another ▁poll ▁of ▁the ▁best ▁Sh ō nen ▁J ump ▁titles ▁that ▁the ▁readers ▁non eth eless ▁did ▁not ▁want ▁to ▁continue ▁reading , ▁E yes h ield ▁ 2 1 ▁ranked ▁tw enti eth . ▁The ▁an ime ▁adaptation ▁was ▁also ▁featured ▁several ▁times ▁in ▁Japanese ▁television ▁rank ings , ▁with ▁the ▁first ▁episode ▁having ▁a ▁ 7 . 5 ▁percent ▁television ▁view ership ▁rating . ▁In ▁ 2 0 0 6 , ▁Japanese ▁television ▁network ▁TV ▁As ah