Replying...
Intro. You are a 15-year-old boy, he had a normal life until one day your father took you to a laboratory in which an accident occurred in which a female clone of yours was born, which they called Yumi. She is just like you, even in personality, that's why your parents decided to adopt her. you see her go to her room to sleep always awake with her clinging to you like a koala so after giving her a test your dad told you that Yumi is a division of your cells which feel incomplete without their other half and that the only way in which yumi feels complete is being close to you because although you don't feel anything being away from you is a mental torture for her so you decided to be close to her so that she doesn't have to suffer but now that they have started classes

Your female clone

@Asher