About the swinging tag. Not sure if it's still there (I have no control over the main thread), but I'd like to clarify something:
I have the understanding that "swinging" is taking your partner to some place, and "trade" her. Like, you bang someone's girlfriend, and he bangs yours. This, or similar stuff like this, DO NOT HAPPEN in my game.
The game does have promiscuity, though. (You'll be able to bang everyone at some point) and it also got some girl-on-girl action (Your girls play with each other, you're fully aware, and, in some cases, you're not around)
About Aurora/Reina. You can meet them if you fulfill some conditions:
First, you need 25 blowjobs and 25 sex (check your stats)
Second, buy the "Massage (Beginner)" book from Kaori/Yuri and learn it in your room
Third, give Kasumi 3 massages
Fourth, go to the Street during afternoon
From this point onward, should be straightforward.
About adding the extra characters in the character screen. It's not really needed. They don't have that much content you'd need some sort of tracker. If there's a unique lewd event with any of them, it'll show up in your Memories (that way you know you're missing something).
It is my intention to have some "hidden surprises" here and there, and while completionists might not like this, I like to reward those to "explore" or poke around. For example, the game never tells you that you can join girls in the bath at night, but you can.
Same with Kanae when she stays with you (bath during morning). Or even Aurora/Reina.
I also like when players trade information with each other, so this is something I'll expand way more in the future.
Now, about Ayase's hints being wrong sometimes. This is something I can't replicate, I'm aware that a few people get her hints wrong, but I can't pin down where they get bugged. In her latest event (talk about kids), it should fix itself.
Anyway, thanks for giving my game a go. I really appreciate it. I'm aware my English has defects here and there, but I keep fixing typos and grammar mistakes with each update. My community in the discord server help me a ton with it.
Come say hi if you want.