Hinatabi Bitter Sweets, short name Hinabita, is one of those series obscure enough to not deserve a Wikipedia entry, so if you want more, take a look at those pages: here and (more detailed, but user unfriendly) there.
By the same mangaka from whom another pair of Hinabita doujinshi had already scanlated, here is a new translation, once again starring the same Hinabita girl, Cocona Shinonome, once again spending sweet time with her producer. The two previous doujinshi were dark and annoying as a story, this new one is much better, vanilla oriented. Still with a bittersweet feeling (Japanese society is unkind to idols caught having a romantic relationship with their producer), but it’s vanilla nonetheless
The art is decent and the censorship bearable, also. However, watch out for the damn confusing flashback/present/flashback/present non-linear progression, and for the awkward English.
Thanks to B-Draged for this release!
By the same artist, I also share Boku No Kanojo O Shoukai Shimasu volumes 1-2.