From the 30 singles released by the Checkers, 3 singles are being reissued for the first time on vinyl, and 3 singles are being reissued on 7-inch analog singles. Reissued in a limited box set as part of the Checkers' 40th anniversary project. Included will be "Sunao ni I'm Sorry", "Room", "Cherie", "Yoake no Breath", "Mrs. Mermaid", "Blue Moon Stone" and their respective coupling songs.