I want to correct the question and add it: 

1. Kotone part I forgot that Akira is a boy, didn't read it carefully.  But her photos is there in LSH
2. Is Michiko's family a Fox? because they are all part of scp. if it is true then Hinata should have something unique with her being a site assistant, right, interesting.

1. Almost all character with some exception of course. For example you will never see Orihime's parents, Anko's mom, Hiroshi's mom. Aone will be there in Magic Ring.
2. Not related.
3. Yeah, that's Aoi from street hound. But she loves Masuo but he loves her mother instead. It's because of real Masuo's interference he gives up chasing after Rumiko(Junsa) and began loving Rumei(Aoi).
4. Different families.
5. Kotone is a lady you meet in Magic Ring but it will be never revealed who is she. And both are different person.
6. Well once you marry Junsa, Momoko or Misa in the past everything will be changed accordingly. Once you married any of them you will be doing some job instead of being a college student and will have college aged children instead such as Aoi and Himeko. I'm still unsure if I should keep 0.0-0.6 to cutscene or actually make them happen because that would be so much work. But 0.0 may happens as I'm deciding between that and 0.8(somewhat similar to Street Hound) once Masuo refuses the ring.
7. Akane marries Kenta. Mr. Yoshikawa is her father. She appears with along with Kent and  Gojou Kamogawa during a fight club questline.
8. Yeah, back then when Chihiro was blonde. She puts a curse on him that makes no one love him. That curse alleviated when Ryoko disguised as an old man gives him the ring. Fumiko and Chihiro were the only marriageable options back then. The Magic Ring also worked differently then. Once you had sex with 100 ladies Ryoko would appear to ask you to marry your true love or Masuo will end up living alone for the rest of his life.
9. Daisuke used to live with Mei since high school. That's why they are best friends. He had a stalker named Junmi. Mei confronted her only to find out she had crush on Daisuke. Daisuke rejected love letter from every other girl but couldn't handle Junmi's sad face and decides to go with it and ends up loving her. Kazuma was a bully until Daisuke put him in his place. Since then he, Daisuke and Shin became best friends. Kazuma has crush on Mei but she turns him down every time. You know why. Youko, Momoko, Ine & Chisato are part of evergreen volleyball team in the year 1992-1995. Daisuke becomes a teacher at evergreen for sometimes. That's why Momoko knows him a bit.
10. Portals are created by Ryoko or Masuo. The one the college level is the first one Masuo made. Later he learned he can just modify them to go to different time and places instead of making one there. Taichi is using that modified portal.
11. Kaemi who is friend of Kagome was created before Junmi's younger sister and she had a last name. I kind of liked that name so given that to her sister instead. Will change Kagome's friends name entirely or just her surname to make her still appear.  Kagome asks Masuo to become her fake husband for different reason. The club thing happens after, one, if you ignore Kagome she messages you about her club. Otherwise if you fuck her in front of her friend Mineko who gets jealous and pitches the idea of making him part of their sex club.
12. That's a top secret information only me and higher ups at the SCM foundation know. Real world ending stuff you know. Can't know about it until Magic Ring.
13. This will be revealed in upcoming questline of LSH.
14. Takeru is not how he is on the surface. He is obsessed with Ryoko as she reminds him of Junsa during her college days. He likes college girls btw. Azusa dupes him by dressing as Ryoko. He often asks Tomo or Deko to put on a wig like Ryoko when he is having sex with them. In Timeline 2, he is obsessed with Hinata and tries paying her more money for more than just her naked pictures.
15. Yeah, but not gonna meet many of them.
16. Yes. You will see him and Mitsuri together in Ito Household map of LSH. But they are not in relationship at that point. She comes there because she heard Masuo is there with Momoko.
17. Masuo takes Aoi and Junsa to his world on Reita's request. Don't have much on their questline at the moment apart from just living in the main universe. If you choose not to help Izumi she eventually escape from Reita and toughens up. Unlike Reiko, her hairs are naturally blue. After Chiaki's death in Ravaging Beast, Reita chooses to side with Merusa and plunge all of the humanity to be enslaved of her monsters.
18. Deko and Rin are the only ones you will have more interactions with. Rest are not important to story in any way. Rin's would be something you should be interested in because like you heard her saying. She offers the customer refund instead of going with the special service. More on that in Magic Ring.
19. Haven't really thought about her whole family. Her only known relatives would be Ruby(cousin) and Sapphire(Ruby's grandchild). Akimoto is the family that buys Nowhere inn from her.
20. Someone request Himawari to be part of Poker game. Masuo doesn't know her current whereabout so goes back in the past. He finds out she is yet to come there and not wanting to wait too long, asks Ichika to be part of the show. Himawari will be marriageable option after completing Magic Ring. Something that requires you doing specific things unless you edit the save.
21. Sayuri and Hana the toilet ghost appears in Magic Ring. You can do something to stop them from becoming a ghost. Nana Shimuzu you meet in the karaoke booth. She will beg you to have sex with her. There's a chance of Merusa getting to Masuo so player has to do it at their own risk. Azulthundra would have appear in street level of LSHRM trying to trick player into thinking she is into Masuo. Sumire will appear in both form, human and ghost. But depends on how her questline ends. Brigette, not sure if I want to add in LSH or Magic Ring at the moment.
22. He has grown so strong that he even control Merusa when he becomes her lover. Usually when they unite Merusa is his sole lover but in Reita's case, he can have sex with anyone even after uniting with Merusa. No transformation. Izumi calls him a monster because he sent his minion to catch her and make her his sex slave again.
23. That's unknown and not necessary.
24. It's the layer where Jiyon takes you after you don't heed her warning of not having sex with her. You are condemned to be used as pleasure toy for all of the succubi until Rumia shows up and scares the shit out of all of them. Ryoko uses that opportunity to make it into a movie. I think I removed it since there would be a lot of editing when Magic Ring content was being removed.
25. Nana in her regular or succubi, Azulthundra's I am looking around. Rose? You mean Rosethundra right? That image of Sayuri and Nanako are from Momoko's phone gallery and both are NSFW. Nanako's could work but Sayuri's needed to be cropped like that.

Most erotic game developers  uses this platform to refine their skills. Once done they move onto non erotic ones. I want to refine my story writing too. That's why Magic Ring will be the final project since I can pretty much make any game I want even though the code wouldn't be so good.

I think there's a difference in my behaviour since LSH was NTR debacle. I used to reply to each and every comment even though I have to repeat myself but now not so much. I only bother to reply to known accounts or the ones that can't be replied by others.

There's no need to delete the thread. Might help reader with a few Magic Ring quests.

Nana Shimuzu:-

Rosethundra:-

Azulthundra:-

Asking again, Is she the Nanoka on the animation list? She's very pretty

And she is Ritsu right?

And who is he?