Zoku Koihime is a sequel to the original series. It pretty much contains all the same characters from the original, but now includes a new girl called Tomamo and her father Enra. As a sequel, it continues where the story left off and answers some questions.
Story (8): As far as the story goes, its pretty good compared to most hentai as it follows the original storyline. I would write what the plot is about but its probably better I dont so you can watch it yourselves. Theres some comedic and romantic moments and not so much NTR, so most of it is guilt free.
The art is the same as the previous Koihime so it isnt top of the line like Bible Black, but it is a little more smooth and detailed. Unfortunately, the censorship is worse than most hentai ive seen and can be really annoying at times. I dont know if theres an uncensored version so unless I see one, the score isnt getting any higher.
Sound (9): The original voice actors are here and the music isnt too loud so the sound is good.
Character (10): The characters are the same which is a plus and the introduction of Tomamo really helped. Personally, Tomamo is my favorite character so i guess its a little biased, but for the most part all the characters are well developed.
Enjoyment (8): I thought it was a good sequel to the story with some pretty good sex scenes including a threesome, but the censorship really killed the mood at times that can be hard to ignore. Once its censorship free, this show will really shine.
Overall I give this hentai an 8. The story is nice and well developed with good sex scenes but the censorship is a heavy anchor. Either way though I recommend watching it since its worth a watch to see how the story end with some good H scenes.