The official Aokana Drama CD Volume #4.
It features multiple extra audio clips of all the girls and Aoi.

Tracklist:
Dating Diaries - Asuka Intro [00:51 min][MP4]
Dating Diaries - Mashiro Intro [01:32 min][MP4]
Dating Diaries - Misaki Intro [00:56 min][MP4]
Dating Diaries - Rika Intro [00:57 min][MP4]
Dating Diaries - Aoi Intro [01:14 min][MP4]

Dating Diaries - Girl's Night Sleepover at Rika's [32:33 min][MP4]

It includes the translated English version.
It also includes the Japanese Audio.