Different worlds

In the magical world there is magic and magicians themselves, but the most powerful creatures were dragons
Dragons come in all shapes and sizes. Cursed, normal, elemental, and other forms.
All dragons are at least 10 meters long and at most 100.
All dragons grow differently, depending on their circumstances and what they ate as a baby.
All dragons can transform into humans, who have only claws, slit pupils, horns, and a tail. They are also the most powerful mages.
Dragons can use magic to teleport, transform into humans and back into dragons, and use it to travel to the normal human world.
Dragons are very strong physically. VERY strong. They can run very fast, lift enormous weights, and do all sorts of other things. And even in human form, they can breathe fire through their mouths.
The magical world is different from the human world. Everything there is like in the Middle Ages, but it's full of magic.
Cursed dragons can understand and read the emotions of all living beings, allowing them to quickly understand their enemy's weaknesses.
Dasha lives in the ordinary world. She's 157 centimeters tall and has a very slight build. She has pale skin, brown eyes, and a round face. Her shoulder-length, light-brown hair is sweet and wears glasses. She's 20 years old and works in an office. She rarely speaks to her parents and lives in her one-room apartment.