First: I LOVE this series! The wait and the suspense is killing me! Nevertheless I keep on re-watching the episodes to shorten the wait and hopefully improve my Japanese (total novice here!).

Maybe I'm interpreting too much, maybe it is really obvious for everyone, but I think Taiga doesn't sleep with his clients, because he hasn't slept with anyone at all yet.

That's why he hesitated with Akina in the hotel. Fear of failure and maybe even more, something he doesn't want to be taken from him, something that is not for sale. 

Yes he says, in episode 4 that he would bend the rules for Manami, but I think that was just another test for Manami. Testing if she really doesn't have an ulterior motive.

Besides all that, I really hope for a happy ending for the two. Not sure how that could work, but I don't want a sad ending, where Taiga becomes the next victim of the host killer. 😪 

What do you think?

Thank you for your reply! True, I didn't even realize this parallel.  Nevertheless I think he never has. He always stresses that he doesn't sleep with his clients and as a  "professional", I wouldn't expect him to have arousal problems. 

The age gap: I haven't seen any discussion about it, but this is my third Japanese drama with an age difference, where the woman is older. I think Manami is 35 and Taiga 23, so in my personal opinion it is never about the years, but the arena of life you are in. Being in your 30s vs being in your 20s is a huge difference. If she was 62 and he was 50, noone would care. Still I want them to end up together, I need a happy end here. 

I would also be more concerned about that age gap if the sexes were reversed. Many men have reasons for choosing much younger women and none of those are pure love, so... 

It's hard to say whether or not Kaworu is still a virgin. For one, I think the actor gives his character a softer impression than he'd have in real life - I mean Kaworu. Young as he may be, this is a man who dropped school and cannot even properly read a children's book. He doesn't really know parental love or any sort of love; he liked dancing, but spent his days getting in trouble and into fights before becoming a host.

Yeah, the actor hasn't been able to portray that at all, IMHO.

Kaworu doesn't seem to have any female friends or past girlfriends, and he also doesn't sleep with his clients. Despite of his supposed social skills, he never really fit in and he's a loner. I think that, yes, he may very well still be a virgin. Though that's probably not the focus of the story.

No offense, but to disagree with the previous poster, in Japan it isn't uncommon at all to still be a virgin in your 20's.  Or even 30's. Of course these are usually people who are literate, busy focusing on their studies and jobs... But still.

Manali is indeed 35. It said so in the drama and also on the official website.