Angel and Demon

"Create a small gap in the chains." Compass Carburettor said the moment Rhizen exited the mind space, turning physical.

"Alright, give me a moment." Rhizen nodded and began to concentrate on his power.

"I'll be waiting for you," Grisha said with a gentle smile.

"It won't take long." Compass Carburettor replied as he sensed the chains on his Dimensional Space weakening for a moment when he snapped his fingers, sending Grisha into the Dimensional Space.

Immediately after, the Dimensional Space was sealed up, preventing him from using his abilities.

Grisha was basically an extension of himself, an extension of the Main Character. And hence, she too would have to die for the Grade 2 Systems watching over the Cultivation World to be assured of his death.

And, if she were to be killed here, her death would be permanent. He didn't wish to lose her, and hence, sent her into the Dimensional Space.