Two Available Cycles

Before he could move, however, Lucius had taken it upon itself to open the window by a crack and slipped into the room in one smooth motion before nudging it shut once more. 

Had any other person witnessed this, they would have been shocked out of their wits at the cat's skillful operation. But Gu Luoxin merely stared at the black cat without blinking, seemingly trying to ascertain whether the sight before him was real or it was just a figment of his imagination. 

He no longer stood on ceremony and behaved courteously around Lucius like he did at the beginning. In the Glass Slipper Town, he had transformed into a mouse and it was Lucius who had saved his poor little life from the filthy sewer. Since then, the two of them had formed a close bond, one that was exclusively different from his friendship with Noir.

Lucius might have been a divine prop bound to Noir, but to him, the black cat was just… Lucius and no one else.