Saw the list of characters and assumed those were your options for who you'd get to fuck, turns out it's just this Benneq guy and the character list is who fucks him?
I'm honestly just confused why anyone would bother listing who the floating "wild fantasy dick" can possibly belong to, it's not like they're IN the game, they're just text boxes in the corner.
Benneq is a popular character of CoffeeSoda's that appeals to a lot of folks, and the description of the game at the top is literally "fuck Benneq in this experimental sex game...", so I'm not sure how you missed that, lol. :p It also makes the point, somewhere (game's intro / first few text lines?), that this is about him going to the cafe to get banged by a bunch of dudes (and his wife as the finale) as part of some little challenge.
At the beginning of the chart, it says "Featuring" - implying that the following characters are in-addition-to the "main" character, Benneq. Much like when a popular artist features a guest singer, etc., in their song. In this case, they're just the "guest" dicks. If it would have benefited to just be that much more explicit, I suppose it could have been written as "Featuring the dicks of:..."
The character descriptions are just a little bit of extra flavor and personality, really - along with being inserts of some folks' sonas. (Were they backers of the game, perhaps?) It could have just been a game featuring Benneq and a bunch of interesting-looking, disembodied dicks that you fuck him with, only - sure. Then it would have just been that much less of a game/story/context for the whole thing. In that case, story-wise, it might as well be "fuck Benneq with a bunch of interesting toys" instead of the assertion that there's whole characters behind each of the dicks that are fucking him.
With it, though, there's a little bit of dialogue and personality behind the dick - there's a whole person behind it (and it's just disembodied for the sake of the game and/or smut). The goat-demon causes a pentagram to show up when he cums and teases about avoiding holy water for a while, the shapeshifter grows his dick during his turn, and one of them just has two dicks because reasons. It gives a little more flavor and context to it, that's all - an aid to fill-in the experience/story for the user between the lines of what's displayed.
All that said, it would indeed be fun to see other character choices for Benneq's role. That's totally a valid desire. c:
