Yusuf Zuck didn't press him any further, in the wee hours of the night, and this brother had waited up for him all night, it would be strange if he weren't tired.
On the other hand, Yusuf Zuck, who had not slept for several nights in a row, also seemed to lack any desire to sleep. This time, after opening another Blood Bead, he realized he hadn't slept for about five or six days. Firstly, because he wasn't sleepy, and secondly, because he couldn't fall asleep even when lying down.
It wasn't excitement, nor had there been any overly stimulating events; he simply felt no need to sleep.
Yusuf Zuck had a vague understanding that this was definitely because of the Blood Beads. With his brain function enhanced, the mutated him seemed to have truly become a superhuman.
Once on the highway, heading south, Yusuf Zuck's minimum speed on the highway was also around 170 or 180. The new car had gone through its break-in period, so it drove particularly smoothly.