Yusuf Zuck, who once again stepped out of Blue Sea and Cloud Sky, was determined not to leave the Dark Zone until he returned to the Blue Sea and Cloud Sky, for he needed to consider the future of his foolish son. In the past, his responsibilities were only towards his woman or friends, but now he had a son. His son carried on the bloodline; regardless of whether he was foolish or smart, Yusuf had to take responsibility for caring for him throughout his life.
The so-called "fiercely protective father" was exactly that, and Yusuf Zuck was fiercely protective.
He continuously shuttled through the darkness, relentlessly pressing forward.
Months passed, with no end and no exit in sight.
Years later, still no end and no exit.
In this darkness, disaster followed disaster. If it weren't for his Blue Sea and Cloud Sky protecting him, even with the Purple Blood Beads he would have died just the same.