My Project Sekai OC. They use they/them pronouns.

As a child they loved to sing but due to an unfortunate accident they have been left unable to use their voice. Only in their Sekai do they have they ability to speak again. Not very much or very well (they have a very prominent stutter and if they speak too much their throat will start getting sore) but to them having their voice back is everything. They're trying to learn to speak better while in their Sekai, hoping it will have an effect on them in the real world.

In Yuki's Sekai there's nothing but hills full of grass and flowers which stretch on for miles and miles in every direction. The only exception is a two story house which sits in the center of a small valley. It appears somewhat dollhouse like, with a single bedroom, bathroom, a kitchen/dining room, and living room, and one side completely exposed to the outside. Despite this nothing from the outside has ever gotten inside unless someone brought it inside.

The weather will occasionally change depending on Yuki's emotions but most of the time it's just sunny with a few clouds scattered here and there. It always appears as if it's just before noon, regardless of the time in the real world.

I should probably stop here because otherwise I'll just go on a neverending ramble about the Sekai because there's just so much info I made up and love. If you want me to keep explaining it I gladly will but in the meantime I'm going to try to come up with ideas for Yuki's group mates, their group name, and a name for the Sekai. (Willing to listen to suggestions)