The days passed one by one.
Led by Cai'er, the members of Marshal-level Demon Hunter Squad No. 65 spent all day in the Tower of Eternity, though they did not neglect their cultivation.
As for Ye Tian, his days were much easier.
Every day, he was either soaking in medicinal baths or meditating in the cultivation chamber, occasionally heading out into the courtyard to bask in the sun.
Both his Internal Spiritual Energy and External Spiritual Power steadily increased, with the latter growing even faster.
Although the medicinal baths made primarily from Ninth Order Heaven-Defying Demon Dragon Clan magic crystals no longer had much effect on the others, that did not mean their External Spiritual Power had reached its limit.
Some of the medicinal power remained hidden within their bodies, slowly being absorbed through daily cultivation and battle.
Now, they could fully bring out the medicine's effects through aerial combat training.
With such fulfilling days, time passed rather quickly.
Yet it was not only every member of Marshal-level Demon Hunter Squad No. 65 who was growing stronger.
Demonheart City.
Inside a hall permeated with dark energy.
"Boom! Boom!! Boom!!!"
Deafening sonic booms rang out in succession.
At the center of it all stood a man in the middle of the hall, relentlessly attacking the air.
Every punch and kick he threw unleashed terrifying explosions, while dense waves of dark spiritual energy burst from around his body.
Yet no matter how powerful his attacks were, they could not damage the hall in the slightest.
As his momentum continued to rise, even the air began to distort.
Just then, a figure silently appeared behind him.
Perhaps sensing something amiss behind him, the man who had been training alone suddenly spun around and threw a punch.
Dark spiritual energy instantly condensed and erupted.