```
The difficult part was integrating mana into the Musical Technique.
Nonetheless, Lu Changsheng used the simplest and most direct teaching method, doing it himself, which conveyed a sense of achievement.
...
Half a month later, Xu Ruyin emerged from her retreat.
She had successfully contracted the Heavenly Demon Phoenix as her Life-bound Beast!
Although the once-infant Heavenly Demon Phoenix did not show a significant increase in strength after the full contract, it seemed to have grown up a lot.
"Husband."
Xu Ruyin came to see Lu Changsheng first thing.
Clad in a fiery red dress, her tall and alluring figure was complemented by her red hair which now seemed to have an added tinge of pale golden sheen, bestowing her with an even more noble, sacred aura.
Lu Changsheng had looked over the Beast Technique and knew that cultivating it would induce changes based on the contracted demon beast.
"Yes, not bad."
