▁later . ▁It ▁features ▁vocals ▁from ▁Dream ' s ▁Sh iz uka ▁and ▁Am i , ▁F lower ' s ▁Re ina ▁and ▁H app iness ' s ▁Kar en . ▁The ▁single ▁sold ▁ 6 9 , 0 8 7 ▁in ▁its ▁first ▁week . ▁ ▁" D iam ond ▁Only " ▁is ▁the ▁third ▁single ▁from ▁the ▁album ▁and ▁e ighth ▁overall . ▁The ▁song ▁was ▁used ▁as ▁the ▁theme ▁song ▁for ▁a ▁Japanese ▁drama ▁named ▁Ko ib umi ▁Bi y ori . ▁It ▁was ▁released ▁digit ally ▁on ▁September ▁ 2 5 , ▁ 2 0 1 3 ▁and ▁phys ically ▁on ▁October ▁ 2 , ▁ 2 0 1 3 ▁in ▁four ▁ed itions : ▁CD ▁Only ▁Version , ▁CD + D VD ▁Version , ▁One ▁Co in ▁CD ▁Version ▁and ▁Music ▁Card ▁ed itions ▁for ▁each ▁member . ▁It ▁features ▁vocals ▁from ▁Dream ' s ▁Sh iz uka , ▁A ya ▁and ▁Am i , ▁F lower ' s ▁Re ina ▁and ▁H app iness ' s ▁Kar en . ▁The ▁single ▁sold ▁ 7 2 , 8 0 8 ▁in ▁its ▁first ▁week . ▁ ▁" R y de en ▁~ D ance ▁All ▁Night ~ " ▁is ▁a ▁prom ot ional ▁single ▁released ▁prior ▁to ▁the ▁album ▁on ▁March ▁ 5 , ▁ 2 0 1 4 . ▁It ▁features ▁vocals ▁from ▁Dream ' s ▁Sh iz uka ▁and ▁Er ie , ▁F lower ' s ▁Re ina ▁and ▁H app iness ' s ▁Kar en