556 Opening the Five Gates

In the night sky, stars twinkled as Chen Fei stood in the secret chamber, feeling his energy slowly rising.

Since he had decided to head to the frontline, apart from the necessary preparations, he knew he had to upgrade the techniques within his spatial grid to the strongest ones.

During the recent breakthrough to the mid-stage of the Combined Aperture Tempering realm, Chen Fei had already stored a new sword element within the spatial grid. At that time, this sword element could be considered the strongest state.

However, with the birth of the Profound Heavenly Sword, although Chen Fei's cultivation had not changed much due to the short time, the advancement in martial arts level still further enhanced his combat power.

During these ten days, Chen Fei had almost not slept, continuously practicing his martial arts, and improving the proficiency of the Profound Heavenly Sword.