A cruiser has no chance against a main ship; staying longer will only increase casualties.
Even if the main ship was originally designed just for fuel transportation, and hasn't undergone any modifications.
Such a main ship cannot be said to be an adversary that a cruiser could face.
Thus, the Prometheus Level can easily reach Yunluo Star's orbit, and the situation outside is looking grim.
Moreover, the moment Prometheus and its accompanying fleet arrived through their jump, they began clearing the entire star system.
Even as Chen Ming continued to bombard, Prometheus had already successfully occupied the planetary airspace.
Blocking all foreign personnel from entering.
To stop the Host, to stop Zuo Jing, it seems the only way is through internal fights.
So Chen Ming didn't continue to laboriously track the two, instead turning to concentrate all his powers once again into his fists, continuing to bomb underground.
Until he finds that Host underground.
