I've spent a few hours playing through all the content that's come out so far and I have to say that I'm very positively surprised.
The story revolves around time travel and so far it's not very advanced. Nevertheless, there are already some interesting elements in the plot which are not yet discovered and raise many questions. I don't know how many episodes the author is planning, but I hope he won't try to rush the plot development, because with the time travel theme it's easy to get inaccurate and messy.
There is no shortage of funny moments in the game and humor is another strength of this game. The morning scene with Jessica or playing Mortal with Darci are definitely my favorite moments so far.
The characters are well written and there is something for everyone. From the shy to the feisty and slutty. There's plenty to choose from, although not all the female characters have more "interesting" content yet (personally, I'm looking forward to Jess' content the most). I assume that the lack of a harem tag is not accidental and in the end we'll have to choose only one LI, but personally I don't mind.
As for the renders, they are classic HS renders. Either someone will like them or not. The details and facial expressions are definitely a big plus. You don't get the impression that you are talking to a robot, but actually to a character. The animations in this game are just great. It is with this aspect that you can really see how much the author has put into creating this game. Very smooth, different camera angles, there are even added sounds. Nice change after playing games where there was a slideshow instead of animations.
I don't know what the update frequency of this game is but I will definitely keep an eye on further development. Well done