"No need to be nervous," Aizen said calmly, not paying much attention to Blackheart's subtle movements.
Although Blackheart had trained for many years and was at the same mid-stage Bone Refining Realm as Aizen, their actual combat power differed significantly.
Even someone like Valentino would easily overpower Blackheart.
Aizen crouched down and began stripping the unconscious servant boy of his clothes.
"Um, senior brother, what are you doing?" Blackheart asked, slightly bewildered.
However, seeing that Aizen seemed to have a plan and not malicious intent, he relaxed a little.
After a short while, Aizen had changed into the servant boy's tattered clothes, stowing his own gear safely and instructing Blackheart to hide the servant boy in the tavern's wine cellar.
If he wasn't concerned about the smell of blood drawing attention, Aizen would have killed the servant on the spot.