I tried to use the shiori call button in the office to have sex, but whenever I do that, she comes in and then just leaves.
I still can't talk to Alexis (to complete the quest), even after doing Pi's mission.
I don't know how to have a threesome with Kleio and Morgan, because it still says in the book "that's all for now".
And Emma has returned to the game, but apparently there is still no way to do anything with her(Maybe it will be implemented in an upcoming update / bugfix or I don't know how to do this).