Quite late on this review. Honestly, I just forgot about it for a while.
The gameplay is mid. You schedule them and have "special" activities like sponsored streams, meet-and-greets, 3D Modelling, Concert Live, etc. that are limited count you get from working your ass off. You then manage their week, checking in on streams, answering their questions, etc.
It's a decent foundation, but like many have said, is very easy as I did most of their Personal Goals by the half-way mark, the only one missing being the Concert because I wasn't lucky enough to get one (or too early?). The rest was just spent grinding for the concert, and doing it.
TLDR, Early Game you carefully schedule them to maximize stress, time, and gains. Late game, you just skip weeks repeating the schedule until done.
Visuals are good. L2D animation, varied positions, cosplay, etc. The UI is nice, the art is good. I did not notice anything strange visually but maybe someone with better eyes for these things might have noticed something.
Audio is good. The various button sounds, transitional jingles, moans, that sort of stuff. Kind of like the gameplay, it gets a bit repetitive to hear the same transition since it's the main theme throughout the game, but not enough to get sick of it.
Mild Spoilers:
Story is good. Each girl has their own goals and reasons, one being broke, one having made a mistake in their past, and one in a birdcage. So they all want to escape their problems/solve it, and so they got into becoming a V-Tuber, and with the power of your brains and dick you help them achieve their goals liberating them from their problems. It's honestly nothing special, but a stereotypical "That's nice" type of story about bettering one's situation.