Knuckles could be a supporting character. He might be a bit awkward around Amy Rose when he realizes she's on her period, but still tries to be there for her. He could stand guard outside her room to give her privacy or bring her some of her favorite things. Cream and Cheese could also be supporting characters. Cream could be empathetic and offer to keep Amy company, while Cheese could do little cute things to cheer her up.
Big the Cat could be a supporting character. He could share some of his fishing spots with Amy Rose, thinking that the peaceful environment might help her relax. And Rouge could be involved too. She could offer some beauty and self - care tips to Amy Rose, like how to deal with skin changes during her period. All these characters could play different roles in supporting Amy Rose through this time.
Sonic could be a supporting character. He might be initially clueless about what's going on with Amy Rose but tries to be supportive in his own way. He could offer to do some of her tasks for her so she can rest. Tails could also be there. He might use his intelligence to find ways to ease Amy's discomfort, like inventing a device that provides heat for her cramps.
One possible plot could be Amy Rose dealing with the physical discomfort. For example, she might struggle to keep up with her usual activities like running around or fighting bad guys. She could also face some embarrassment at first if she accidentally leaks or has to deal with cramps in public. Her friends might notice her being a bit off and try to help, but not fully understand what she's going through until she explains it to them.
The plot might involve Amy Rose's search for supplies when she gets her period. In the Sonic universe, this could be an adventure in itself. She may have to venture into an unknown area to find something suitable. Along the way, she meets other female characters who help her. This not only becomes a story about her dealing with her period but also about female camaraderie and empowerment within the Sonic world.
I think Hinata would be a great supporting character. Hinata is very empathetic and kind. She would be there to listen to Sakura's concerns and offer her quiet support. Also, Kakashi could play an interesting role. He might not fully understand what's going on but still offer his general wisdom and support to Sakura in his own unique, laid - back way.
DJ's little brother, Michelle, could also be involved in a cute way. She might not fully understand what's going on but could try to be helpful in her own innocent way, like bringing DJ a flower or something she thinks will make her feel better.
Well, it can be different in that it focuses on a very real and relatable aspect of a female character's life that is often not explored in fanfictions. Most fanfictions in the Sonic world tend to be about battles and adventures, but this one delves into a more personal and biological experience of Amy Rose.
Her best friend could be a main character. When Amy gets drunk, the best friend might be the one trying to take care of her, making sure she doesn't do anything too crazy and getting her home safely.
Her best friend could be a main character. This friend might be the first one Lily tells about getting her period and could offer practical advice like which pads are the most comfortable.
Perhaps a mysterious stranger who has some unknown vendetta against the Heartland family. This person could have been lurking around the ranch for a while, waiting for the perfect opportunity to strike. Or it could be someone within the community who has a hidden agenda and sees Amy as an obstacle to their plans.
Bulma would likely be a main character. As Bulla's mother, she would play a crucial role in guiding and supporting Bulla through this new stage. She could share her own experiences and wisdom with her daughter.
Eleven herself is the central character. Her friends like Mike, Dustin, and Lucas would likely be involved. Mike, being her close friend and having a special bond with her, would be there for her. Dustin and Lucas would probably offer their own unique forms of support.