Here are some ideas and insipirations for the next update you can use:
-maybe 2 or 3 more "Should I look?"/"Take a risk?"-scenes.
-in the "Main"house, where Katelyn, etc. lives, you can go in the room of Katelyn and in the bathroom, where you can go take a bath and maybe Rika, Cece and Katelyn can join or this time it is turned and you get strung by Rika, Katelyn or Cece.
-Katelyn gets her own "story"/"chapter" like her mum just that she is shyer and "chaoticer" with her feelings, because she is a young lady which, looks like, never had a boyfriend, maybe take a little bit more time to get her.
-if you want to start the "mission"/"chapter" of Katelyn you can find her at the guest house, where she is trying to repair some of the house and you are talking with her a little, goes at the next day maybe with her at the (mentioned) lake and you get her know a bit more and at the end they're a couple. Or a another idea for the Katelyn chapter is, Rika says to her that she can send him to her if she want, so maybe you go sleep and goes down in the living room, where you find Rika and Katelyn talking about something, but you don't know it at that point. They notice you, stopped talking and Rika says something like "speaking of the devil. Here is he". Katelyn is getting a little blushing and leaves. Rika is asking you to help her at the vegetable patch. You can say Yes or No(doing it later) and, if you helped her and talked with her a little bit at the vegetable patch, you can ask what the talked earlier. Rika says something like "Nothing, Nothing" and ask you if you could visit Katelyn this evening in her room (accross from the room of Rika(if the idea with the rooms going through)), because she is feeling sick or just need somebody to talk, idk. You visit her in the evening in her room, where you can talk a little bit with her and flirt a little bit. You have 3 or 4 quest with her, where you learn Katelyn near, and at the end there are maybe 2 or more H-scenes with her. How to trigger these scenes? Maybe when youre going to sleep and she is visiting you or you was with her in the tavern, drank to much and brank her in the bed, where she says that she is very lustful right now, or she wants that you take with her a bath, where you can touch her a little bit, she is getting lustful and is wentting with you in her room.
-Elizabeth gets her own "chapter" or you can/must help her, because she knews something bad about you , whereby you get her trust and occasionally you can flatter, and at the end you wrapped her around the finger and she will not tell it the queen/everyone.
-Eros lost a ring or something significant to her she lost ask you to help to get it back or find it and when you get it, she will reward you.
-add on the map a lake to fishing/swimming or met maybe new characters.
-add on the map maybe a beach or the lighthouse that got repaired.
- what if it could exist a "couple function"? You still can do it with the other but you're hang out more with you're girlfriend or unlock another "missions" thereby.
Conclusion on my part: I would to be very nice and fantastic, if the game is getting new locations, more interaction at the "Farm-/Mainhouse" (where you woked up), new rooms in the "Mainhouse" and Katelyn get's a own "chapter" (see last mentioned ideas in terms of "Farmhouse" and Katelyn) where you have 2 or 3 H-scenes. (And yes I prefer Katelyn)
Storyidea: We know about the "Elve-problem" and they need our help. The Elves are happy that everything works good and the player get one (or maybe more wishes when he is helping more the Elves) wish and you can flirt with Yuku. Some days later you beginn to "flirt" with Katelyn and wanted the next morning to use your wish by the Elves. Cece(or another character) gets that(they're flirting), is getting jealous and angry, because maybe she had a crush on her on him very strong, or she get's because of anything else in that mood, and went in the tavern. She is getting very drunk and talked meanwhile with Eros a little bit about that. A person, who walked past at the table, heard that and went to the queen or Elizabeth to say it her/him in hope of getting a reward or something. The queen/Elizabeth flipped out and send very much troops to this place. At the next morning Yuku knocked at the door of the Breeding Farm and reported everything (for example they got captured). Everyone, so Cece, Katelyn, Rika and the player, is shocked and want to help. Now you have 2 things to find out:First, Who went to the queen/Elizabeth? And Second, from what person or how did he/she found that out? Now you have to determine a little bit and maybe play sometimes your charm. In the meanwhile you are determine, you can still do other things. When you're finished to determine, you find out that Cece was too drunk and talked a bit to loud and now you have to find the person who betray them. After a little asking you find that person in the tavern or on the market. You and the person are going in the guest house on the Breeding Farm and you, Katelyn, Rika and Cece interrogate him. The persons is remembering to a personal description which fits on you. The person is talking and you get a little memory back. Anyways, now you have to flatter Elizabeth and play a little charme to wickle her around your finger. After some H-scenes you order her to convince the queen to let the Elves free.
PS: I am sorry for my grammatically poor English and I'm gonna edit it, if I have some more ideas.