Masaki Yuka will release her 2nd album 'Tears of Heart' on the 8th of August. It only comes in a CD Edition and will most likely feature all her A-sides, B-sides and digital singles.
CD-JAPAN:
http://www.cdjapan.co.jp/detailview.html?KEY=UPCH-1882
HMV:
http://www.hmv.co.jp/en/product/detail/5076951
Price: US $30-$35
I'm not sure why the album is so expensive, considering it only comes with a CD that will probably only have 12 songs...
Also, SWEET PAIN apparently charted within the top 50 on Oricon.