Surprisingly Leise wasn't in the second part of the Hunter exam that he thought that he would be as that was the place that he was going but he was redirected to the separated space. He thought since both of this worlds are parallel worlds the things that happen in one happen in the other with some differences.
From what he understood from the explanation that the System gave, the difference was the level of strength of both worlds.
Leise was magically at the point were all started. He was standing in the flat peak, with only a wood house and a well, of the Flute Mountain in Flute Island.
"System, how come that I'm here? Shouldn't I be at the second phase of the exam? And lastly now that I'm here and this is a parallel world, the memories that you implanted in the people that interacted with me in the Hunter exam where u died will stay the same?" all those questions assaulted Leise the moment he understood where he was and knew that he would need to repeat the Hunter exam.
"Firstly, host isn't in the second phase of the exam because this is six years in the future of that exam as the time didn't slow down or anything when host stayed all those years training;"
"Second, this place as the first place that you came in contact with was recorded and archived by the System as a type of checkpoint, so whenever host travels to another world and wants to come back, host will return to this spot;"
"Third, as host said this is a parallel world so it's rather exact to say that some things are different from the former world. In that world, host is already dead, but in this world, host didn't even make an appearance before any other living being. So host doesn't need to worry that someone finds out about you as to date it doesn't exist any kind of record about you."
The system orderly explained everything to Leise dispelling all the confusion that Leise had.
Leise after putting his ideas in order he went to the house. Inside Leise noticed that everything was exactly the same as when he departed. Even after those six years, the good didn't rot one bit, this made Leise perplexed as he wanted to know what kind of power could intervene in nature's laws to prevent the rotting of organic matter.
Thinking for a second what he would do next, a thought struck him. 'Am I not already 11 years old? Doesn't that means that Gon is also 11 years old?'.
"SH#T!" Leise dashed out off the wood house heading straight to the edge of the peak. Without knowing if Gon was still trying to hunt that big fella in the lake or was already in the boat heading to the Hunter exam he knows that even in both options he doesn't have time to lose.
He approached the edge at a monstrous speed and when he was just one step to reach the edge he released his Shikai and started to fly towards Flute village hoping to obtain information about the boat heading to the Hunter exam.
Reaching the edge of the village he dispelled the Shikai so that he doesn't attract attention and dashed using Shunpo towards the seaport. As he was now a Shunpo Master he didn't need to rest or make more than one step to travel 20 meters each time. People only saw a dazzling and very handsome young man appeared from nowhere and then disappear to only appear for a fraction of a second twenty meters away.
He reached the port and saw a man standing fishing with no boat or ship in his vision. Reaching the man he shouted in a panic voice:
"Sorry to bother, but does the ship for the Hunter exam already came here?"
The man slowly stopped fishing and turned around with a confused face:
"Boat to the Hunter exam? That boat doesn't pass through here."