Nanatsu no Umi yori Kimi no Umi
This CD+DVD contains the opening song to the TV anime Namiuchigiwa no Muromi-san (波打際のむろみさん).
The tracks are as follows.
This is Sumire's debut solo single.
The DVD contains a promo video of "Nanatsu no Umi yori Kimi no Umi". The video includes clips from some live event where Sumire sings this song.