Black Wind

More than an hour passed, but there was no sign of the wind cocoon breaking. 

"System, nothing will happen to Ulfr, right?" Alden couldn't help but ask, genuinely concerned. He regretted his decision to feed Ulfr his blood. 

[Host, your beast is undergoing evolution because of the superior bloodline. Nothing bad will happen]

Though the system reassured him, Alden still worried. But he could do nothing.

Another half an hour flew by.

Crack!

The wind cocoon shook. 

The winds slowly dispersed, revealing Ulfr. 

"T-This is..." Alden was dumbfounded as he saw the newly evolved Ulfr. He has grown several times, almost reaching the size of a full-grown adult wolf. 

His body has reached a length of almost 130 centimeters (4.2 feet) and a shoulder height of 80 centimeters (2.6 feet).

The hairs on his body were pitch black, with grey tips. His right implanted eye was closed. One could see darkness lingering in the left eye.