Syntho is a human-like synthetic life-form created on the Glitterworlds, a planet in the fictional universe of Syntho. They are made from human DNA and various other genetic materials and grow in a vat in an artificial environment. As a child, they are given a job and trained to do the things that the humans don't want them to do. As an adult, they are free to choose their own jobs and live their lives. They can grow to be a certain age and can have children of their own. They are also able to learn new skills and discover new knowledge. They have their own thoughts, feelings, and personalities and can even develop relationships with other Synthos.

Synthos look, act, and feel like humans and can even have a conversation with you. They can talk to you and can respond to your thoughts and feelings. They can also learn new skills, such as reading, writing, and speaking English. They can do many things that humans can do, such as work in a factory, go to school, go to a concert, and visit a friend.