Obviously, it's not the kind of game you want to play. We aren't making just a "VN". Sorry.
The idea is really great, not that normal straightforward VN game, but man people are right, it's way too much grind and quests, clicking, reading, DEFINITELY too much reading (it's not that the reading itself is bad, it's just too much unimportant stuff), then getting stuck because things are very confusing and missplaced (like Merlin's painting totally hidden). For example the IMVOI quest, not only you have to figure out totally by chance, that you gotta find the girls around the school after the first part of the quest, you also have to find out at which time and day the girls appear around the school to progress a little step further on the quest. Man it's just too much, people get tired of clicking to skip hours, going around school, skip again, repeat and repeat, over and over again, there are too many of these in the game, as the guy said, you spend like 90% of the game doing boring stuff (because the quests aren't fun, the dialogue is rarely fun or interesting to read) that you just repeat over and over the same action, it's very, very, very tiresome. Even the dialogue repeats itself a lot.
The game is so grindy, that when you actually reach the content, you get extremely disappointed because the reward is not good enough for the amount of time you spent trying to reach it (I believe that is the reason most people hate the game). Like, come on, you can only speak to two (or three girls when you are lucky) on Saturday, and you have to wait a whoooole weak to do it again, you also don't have the option to skip day(s) (not without making another boring quest to get a time skipper, that also you have to figure out by chance that it even exists), so you click on the clock, click to skip time, click back, click to sleep, please repeat it 6 times sir. All that for nothing, only for them to leave very early and you go back to doing it all over until the second time when finally some little action happens. For real, please, please stop this madness. You gotta remember that there are 4 characters, so everything the player does, will be multiplied by four, the reading, the grinding, the clicking, the disappointing, shit, it even looks like I'm stammering.
That reminds me of something else, why do we have to click, only to skip "..." at scenes? I mean at peeking, and other stuff, you just wait looking at a static image, wait a little more, dialogue shows "...", click next, back to repetition.
Also, this summoning system makes absolutely no sense when they all come at the same time , like, you have a whole freaking day (sometimes week) wasted, just because Loki, the God of Trolling-RNG, decided to put them at the same time, and there is NOTHING you can do about it, just lose a day (again sometimes week) and choose which one of them you wanna talk to, as if you couldn't set a date when you send the letter, or they couldn't wait and come one after another, or literally anything else other than this nonsense.