I have never watched Higurashi before. But I will try not to make them OOC. I don't own Higurashi or anything related to it. (Why do I always forget the disclaimer?)
"Please, Ba-chan! I don't like this! It's always Shion! Why can't you and the rest of them be fairer to her? She's always suffering just because she is not the next heir!" Mion shouted at Oryou, her grandmother.
"She fell in love with one of the Hojou family, so she must be punished for that." Oryou said.
"You said that if she took responsibility for it, you will forgive her! And you also said that if I took responsibility, you will leave her and Satoshi alone!" Mion continued. Mion had never felt so angry in her life. She felt like killing her grandmother. She stormed out of the room before Oryou could say another word.
Mion thought,' So what if she likes Satoshi! What's wrong with loving? Even I have somebody I like.' She blushed at the thought of Keiichi. 'Just because she loves Satoshi and goes to visit him every day in Irie's clinic and read him books and tell him what happened every day, despite him not being able to hear her, they locked her in the cell, planning to send her back to that boarding school? Those bastards!'
Mion made her way to the underground chamber. She went right up to Shion's cell and peered inside. Shion lay on the cold and hard floor, seemingly asleep. It was a little cold in the underground chamber and the dress that was meant more for summer that Shion was wearing was definitely not helping Shion get any warmer, since she was shivering. Mion unlocked the door and entered the cell. She walked over to her sister and carried her bridal style out of the cell. Just as she suspected, Shion was asleep and did not even stir when Mion carried her. Mion carried Shion to the well. Then, she placed her grey jacket that she always wear around her waist over Shion before she went back into the house and packed all her belongings into one big bag. She then brought the bag down into the well and placed it beside Shion, who was still sleeping. She then rushed over to Shion's apartment, grabbed all of Shion's belongings, packed them into a big bag similar to the one she packed her belongings in, left a note to Kasai saying that the apartment now belongs to him and left. She walked back to the well and left Shion's things there. Before she left again she stole a glance at Shion. Feeling relieved when she saw that Shion had stopped shivering, she went back to the house and grabbed a pen and a piece of paper. She wrote 'Sonozaki family, from now on, Shion and I are no longer part of the Sonozaki family. We will live our live our way now. You have two choices. One, you let both of us be heirs and treat us equally. Two, we leave and there will be no next heir to the Sonozaki family. You choose yourselves. Shion is always suffering just because she's not the next heir. You are always unfair to Shion. You will choose the Sonozaki family and your own future. From, Mion' After reading it over, she left it beside the phone and sneaked back into the well. Reaching the well, she looked at Shion again. 'I'm surprised you can still sleep. No, more like, I'm surprised you are still asleep.' Mion thought. She slung both bags over her shoulder, carried the still sleeping Shion who was still wearing her jacket and proceeded to leave through the hole located at the side of the well. That day, Sonozaki Shion and Sonozaki Mion no longer live in the calm village of Hinamizawa.
In my story, the Hinamizawa Syndrome doesn't exist. And there will be characters and places from other animes coming in next chapter, which I am currently working on right now. And again, I apologize for the wait and the updates of the other stories. I am currently finding new ideas for them.