The official Aokana Drama CD Volume #2.
It features 4 extra audio clips of Mashiro and Rika.

Tracklist:
Dating Diaries - Mashiro - Side A [10:43 min][MP4]
Dating Diaries - Mashiro - Side B [10:45 min][MP4]

Dating Diaries - Rika - Side A [10:18 min][MP4]
Dating Diaries - Rika - Side B [13:54 min][MP4]

It includes the English and Chinese versions.
It also includes the Japanese Audio and the official cover artwork.