Hunter, well, I'm very disturbed by the fact that the first sex scene (after the sport competition) between him and Keitaro is basically Keitaro abusing him.
I'm not even joking, Keitaro grab Hunter by the crotch and masturbate him in the shower almost without exchanging consent. And then they avoid each other the next two days because Hunter had friendly intentions toward Keitaro and the guy litteraly forced himself on him. And to have the perfect route, you have to apologize for being so rude to him the first time - "I'm sorry if I rushed things with you"
And the thing is that Hunter is so shy and so wimpy that the other sex scenes aren't much better and Keitaro is constantly asking him if everything is ok and if he likes that. And that's too bad because Hunter's voice actor is pretty good with the moaning (compared to Hiro at least), but the sex scenes lose a lot of arousing value due to the rape undertones.
Still, there are some cute moments (the whole drawing ordeal), but god do I feel bad forcing this innocent little snowball into sex like that.