After they checked each other's abilities, they didn't have any lingering feelings with Netero nor they sobbed and were sad with their separation and they went directly to Heavens Arena since it had been few months since they had stayed in this world.

Unlike Haru who often went on the quest for Group Chat for a few months, it was the first time for Shinobu and Charlotte to stay in another world for so long.

"Still, don't you feel lonely staying in another world for so long?" Shinobu asked.

"Of course, I feel lonely, but I can't return, you know," Haru said with a sigh when he thought that he was mostly alone in another world to do his quest in the past.

Shinobu and Charlotte nodded and felt quite sympathetic at him for doing his quest alone from time to time. In their world, the time on their world was stopped so they didn't know how long Haru had stayed in another world since he had never complained about it.

However, when they went on the quest for so long, they also missed their original world.

"I guess I understand why you often get a lot of girlfriends during your stay at another world, right?" Shinobu said while staring at Haru.

"....."

Haru looked away and blushed, but it was the truth. It was quite easy for him to feel lonely and being with a girl made him able to focus on his quest, probably.

Shinobu and Charlotte nodded and thought that they shouldn't blame him for making a girl one after another in another world, considering his situation, especially when they knew that on his body there was so much of Yang which was harmful if it wasn't being released.

Charlotte and Shinobu then blushed and thought that this guy was really perverted!

Haru knew what they were thinking, but he pretended to not see anything and decided to change the top of the conversation.

"Look! That's Heaven's Arena!"

Along with his voice, Shinobu and Charlotte also turned their heads to see the fourth tallest building in the world through the window of the aircraft.

Heavens Arena is a tower combat arena, the world's most popular battle site, where victorious fighters ascend to higher floors as part of its reward system. It is also the fourth-tallest building in the world, it stands 991 meters (approx. 3,250 feet) tall and has 251 floors. Inside, thousands of martial artists (4,000 fighters on average) compete daily in order to test their skills and advance to higher floors. The annual spectator attendance is over 1 billion and the building is fully equipped with service facilities, including restaurants and shopping.

Competitors are allowed to fight and defeat their opponent using any means, but weapons are not allowed on the first 199 floors. Competitors are given prize money for advancing on each of those 199 floors. After reaching the 100th floor, competitors get their own private room.

The floors above 200th offer no prize money, only fame and glory. All weapons are allowed on this floor. The fighter has 90 days to prepare for any fight, though it's possible to fight every day if wanted. The 21 highest ranked competitors are called Floor Masters because they're given their own floor between the 230th and 250th floors. Losing four matches results in disqualification, while winning ten matches results in being awarded the right to challenge for a Floor Master. The 251st floor of Heavens Arena holds a biennial tournament called the Battle Olympia, and the victor is allowed to live on the 251st floor in an exclusive penthouse.

For a fighter or martial art, Haru had to admit that it was a perfect place for that person to gain money, however, as a businessman, he had to admit that this Heavens Arena was one of the most profitable businesses in the world.

"As the richest man in your world, what do you think of this building?" Charlotte asked.

"It's pretty good," Haru said without hesitation.

It was Shinobu's first time seeing such a tall building and she couldn't help but ask, "Haru, can you build this kind of building?"

"It's possible if I don't build it in Japan," Haru said.

"Huh? Why is that?" Shinobu asked curiously.

"Because of the earthquake." Charlotte pushed the frame of her glasses and said, "Japan is located on the Pacific Ring of Fire, which is the most active earthquake belt in the world."

"....."

"Yes." Haru sighed and said, "I also want to build my own skyscrapers, but I'm worried about an earthquake."

"I am curious how rich you are in your world?" Charlotte asked.

"It should be more than Harvey's family (Claire Harvey's family who is Haru's girlfriend in the World of a Hundred)," Haru said.

"....."

Charlotte thought that her boyfriend was richer than she had thought.

"Well, enough about that, we're about to arrive at the Heavens Arena." Haru looked at two girls and asked, "So do you want to join?"

Charlotte and Shinobu looked at each other and made up their decision.

After Gon was able to get Killua back, both of them went to visit Heavens Arena to get pocket money since they had used all of their money during their journey. Both of them talked about Killua's experience on Heavens Arena when Killua was six years old and how Killua needed two years to reach 200th floors at that time.

When both of them arrived, they were about to register themselves to become fighters on the Heavens Arena, and couldn't help but talk about that person who made them feel threatened.

"Killua, how strong do you think he is?" Gon asked.

"I'm not sure, but he's very strong," Killua said without hesitation, since he still remembered how helpless he was in front of that person. "I have searched for his information before, but the result is nothing since he has only appeared on the Hunter Exam. Beside his name, I don't know anything about him."

"Killuah, what is his name again?" Gon asked, but his eyes were staring somewhere.

"It's Kasugano Haruka," Killua said, but then he noticed Gon's expression turned into strange.

"Isn't that him?" Gon pointed his finger.

Killua followed the direction of Gon's finger and he was in shock when he saw Kasugano Haruka who was on the line of fighter registration of Heavens Arena.

Gon and Killua were surprised, but then both of them were even more surprised when they saw him notice them.

Haru smiled at both of them and waved his hand before he walked away to register himself on the Heavens Arena.

"Gon..." Killua was full of sweat while looking at Gon.

Gon took a deep breath and said, "Let's go, Killua." He took the first step and decided to face his fear. He didn't know how strong Haru was, but if they were really fighting then he wouldn't show mercy!

"..."

Killua was stunned, but then he smiled before chasing after Gon since he thought that being with Gon was really fun.

"What's wrong?" Shinobu asked.

"I see the main characters of this world," Haru said and didn't expect that his time to come to this place would match the Heavens Arena arc.

"What do you want to do?" Charlotte asked.

"What should we do? Of course, we're going to register ourselves, right?" Haru said.

Charlotte and Shinobu nodded.

The three of them then walked toward the registration box to become fighters on Heavens Arena.

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