There's a lot I can say so far about PRF... and I will :D
First off, the story. I really like it so far, the mystery is engaging, and as new mysteries are wrapped up and questions are answered new mysteries and questions are introduced. Not to mention I like how the some of the answers can be solved by the reader before it's explicitly answered, it's really nice. It makes it rewarding to theorize about the mysterious and read between the lines, because if your good enough you can figure things out early, and if you can't accurately predict things then once the answer is given you can re-read earlier chapters and see the foreshadowing.

Next is the characters, I love them!
 - Toki is a big soft boy who I'd love to hug, I really empathize with his social awkwardness, though despite how much of a dork he can be, he does have his badass moments.
- Erik is a very hot guy, who looks like he'd give good strong hugs (what I'd do to get hugged by him and Toki at the same time, it bet it would be heavenly~). And while he is a rector he does know how to cut lose occasionally. Though he definitely needs to learn to take a break... and may stop treating his students as a a dating pool xD
 - Matt is a good himbo and I love him. He's confident and flirty, but not too overbearing which is nice. He's also the most emotionally open of the boys which makes it easier to connect to him. He's just a good boy I can't wait to see more of him :3
 - Willem is the boy Eme is courting that I like the least, but even still I do like him (despite how much I rag on him). The reasons for why he acts the way he does, makes sense and I empathize with his situation, it's just hard to fall for a racist. Despite that he's still a funny little man who is a horribly funny flirt, and I'm sure I'll love him lots once he grows as a character.
 - Jack is the bestest boy and you can fight me on that! I love the gap moe thing he has going on where on the surface he's a big tough guy but on the inside he's just a little cutie~. Jack has a lot of emotional and cute moments, and I just love any scenes he's in. He's just so cute especially when he laughs! That's why it's criminal why we have yet to have any naughty scenes with him I MEAN COME ON LEVYA LET MY KISS THE DETECTIVE!!! Ahem, in short Jack is very cute and I love him.
I actually really like all the guys, it's rare for me to really enjoy all the guys in a VN, even Willem who is my least favorite of the 5 is still somewhere between a 6-8 out of 10 and I'm sure as the story progresses he'll only rise in the ranks
On the topic of characters I'll talk a little about some of the side characters, Pedro is amazing and if I were to petition for any guy to be added to Eme's harem it would be Pedro. Estaban would also be up there on that list but it would be a little weird to dick down both mother and son... right? As for my least favorite characters, well Sachiko while a blast can get a bit hard to handle in large doses and Merry is a little creepy to me, though as the story progresses I'm finding myself warming up to them more and more. Also there's this one character who starts as a CEO to a massive company and later becomes a professor, and like I think he's really cute and adorable, he's very funny and I love the dress he wears :3

There are some things in PRF that I don't really agree with, like how Nala wasn't more concerned when she saw her son's panic attack recovery technique was to bite himself. Though despite that I still really enjoy the VN and the scenes that I take issue with are far and few between. 9.4/10 can't wait to see how things progress :3