Ah gotcha, I won't spoil the game's future contents though, sorry :)
I can't say yet, since even I didn't play through all four chapters yet, I'm still working on the renders for 0.4. But I would say Chapter 1 to 3 takes roughly between 5-10 hours, highly depending on your reading speed. If you skip through parts it will obviously be faster, but if you read everything it's a nice long ride.
Hey! I have an idea for a scene with Claire: The next time they go swimming and she showers in the boys bathroom, the MC doesn't leave, but goes into the changing room with her and starts fucking Claire. She's completely surprised but doesn't mind, because she wants it anyway. And that way, not only does a teacher-student relationship develop, but also a sexual relationship. And then the two of them always have sex after swimming or maybe even after class. Of course, the whole thing could also happen between Jane and the MC.
Hi! Sounds not like something Claire would easily do, I tend to keep my novel semi-realistic, so a teacher-student relationship is by default permitted and Claire wouldn't dare to approach something like that at all. Either they need to get to know each other better for it to happen naturally or something unexpected needs to happen, who knows. :) But don't worry, something is planned for sure, since Claire is a LI and therefore there will be a relationship at some point! ;)
