In the early morning, sunlight poured down, and the chirping of birds was constant.
By the lake within the mansion, a pavilion stood solitary. In the late autumn season, this place felt exceptionally cold.
The strong winds over the lake blew against one's robes, causing them to flutter noisily.
Aizen had been sitting in the pavilion for an entire night.
Despite this, his clothing remained free of dew or dampness, as a vigorous internal energy coursed through his body, puffing out his robes.
His profound inner strength allowed him to refine the foreign energy in his body at a much faster pace.
Even so, after a whole night and with the assistance of a third-grade Arcane Pill, Aizen had only refined one-thirtieth of the foreign inner power.
To completely refine the fifteen years' worth of energy he had absorbed, it would likely take a full month of effort.