Very wholesome indeed
As a Dostoevsky enjoyer I would not mind if the protagonist was a bit less perfect from the start - the morning workout routine was plain ridiculous. :) The first confessional and the inner monologue before that would be a good opportunity to reveal more things about the life and mind of the protagonist, that we do not know yet from the intro.
The setting and lore I think are very good ideas. But do note that a "Cathedral" in Catholicism is very specifically a church containing the seat of a Bishop. The church building found at boarding schools would usually be a Chapel. But I feel you have a really good grasp on Christian values and living them. Make sure you get all the details right and have a game that actual faithful Catholics can endorse.
We are told the school consists only half of monster people, but we do not meet any non-monsters. Having a few "normal" people (as side characters) on screen could help pronounce the monster nature of the rest even more. Anyways the girls are cute and I sure wanna get to know some of them better. Hope you have only wholesome non-sinful interactions in the game.
Text mistakes I noticed: "My eyes to an unfamiliar ceiling", "I back to", "pick form one of these"
Best of luck to you!