Kimi to no Deai ~Good Bye My Days~

"Kimi to no Deai ~Good Bye My Days~" (君との出逢い ～good bye my days～) is a song by Japanese singer-songwriter Rina Aiuchi. It was released on 15 October 2008 through Giza Studio, as the lead single from her seventh studio album Thanx. The single reached number twenty in Japan and has sold over 8,256 copies nationwide. The song served as the theme songs to the Japanese television show, Nihonshi Suspense Gekijo.

Certification and sales
! scope="row"| Japan (RIAJ)
 * None
 * 8,256
 * }
 * }