Light, L: Covenant Between Dragon and Girl

In legend, light separates the world.
The world is divided into two parts. Some people show their talents on the gorgeous stage, while others are unknown in the dark.
The girl wants to go to the stage from the shadow, but she never has the courage to step up. It wasn't until he appeared......
She remembers her first meeting with Elvis. At that time, the sun rises behind the dark clouds, the rainbow appears, and the young man appears in front of her. He looks at her as soft as the breeze.
Astrid is a common girl. Without any friends, she is often bullied, ridiculed, ignored and forgotten. In order to get other's attention, she is often late for school, and she does not turn in her homework. One day, she inadvertently breaks into another world, signs a contract with Count Justice, adopts the young dragon Elvis, and promises to be his master. At the same time, she also meets the talented and popular Young Master Bai of Milo College. With the help of Young Master Bai and Elvis, Astrid gradually becomes brave and confident. However, she is immersed in love with Young Master Bai and gradually neglects Elvis. After an incident of misunderstanding, Astrid wants to break the contract. Elvis sadly leaves. At this time, because he stays in the human world for too long but never finds the mysterious magic, Elvis turns into a black cat wandering around. When she learns of his feelings for her, Astrid finally gives up the idea of breaking the contract. She wants to help him return to his own world within the limited time, otherwise Elvis may disappear forever.
Love makes people happy and makes people willing to give. This is the secret of love and the ultimate interpretation of love magic. Will Astrid and Elvis understand?