Genuine wow from me on all fronts. I can't think of a single flaw for me, this ticks all the boxes of a VN. For some, this might be too wordy with not enough sexual content in a first episode, but the world-building, the MC, the girls, and the overall plot, are amazing.
World-Building: 9/10, I think it does kind of drop you into the deep end at the very start of the game, but as the chapter goes along it gets fleshed out as you and the MC learn more of the families in power, and it's a great time.
Girls: 10/10 Such a diverse array of characters, with a feasible reason for the MC to romance/fuck any of them. Obviously, we have to highlight Cerys, when a VN throws a main love interest at a player, they better deliver, because if they are underwhelming it can ruin the game. She is the best part of a great game, she is gorgeous, sexy, and has a fun and vibrant personality. The other girls don't get as much time to shine besides Aine, who also is amazing, and Anwen has her moments, but that's just the Grym family. The other girls all fit a diverse array of personality types and appearances, but I am most intrigued by Faedh and Laela, can't wait to explore more.
Plot: 9/10, I think this can fall under world building, a little, but the plot is so far, tight, it makes sense for everyone involved to be doing what they are doing, and each character has their own sets of goals.
MC: 10/10, God so many VN's nail everything but the MC, and it's arguably the most important part of a VN, because he/she is the agent in which we see the world/story the author has created. He is not a slimy old man, he is not a prepubescent nerd, he isn't super Chad McJock, he is a handsome, reasonably built and fit, character that is believable to be attractive. He can be charming based on your dialogue choices, but you can also make him reserved and shy and less flirty, which is always a strong point when you can dictate how a MC can react to situations.
A very, very strong start. I hope the author has the resources and time to continue to craft this beautiful story and world.