Yuki discovered through the previous owner of his body that this world's Tokyo actually has a huge Arena where people from all around the world come to compete in it to test their mastery over the various martial art and prove whose way was best.

This place was honored as a holy place for martial arts to the point that no money or rewards were awarded to the winners with the idea that champions are going to be always remembered and honored…

Yuki of course didn't care about honor or whatever, all he cared about is money to repay the debts he was dealing with. Especially the one with Mashiro since he really felt bad taking advantage of this girl, unlike his dear neighbors…

So, the question is… Why would he be attracted to this place if he wasn't going to be rewarded with money? The answer to this question is simple, Through the previous Yuki's connections with the underworld, he found out that another type of arena existed below the known one… And this place was ruled by none other than the Yakuza, the most famous mafia organization in Japan.

And Yuki right now was about to meet one of his previous drug dealers who was going to help him access this arena to start his money-making plans!

Yuki once again visited the Shinjuku area, and once he got out of the train, he found a man wearing a hood that was covering half of his face waiting for him… the man didn't say anything to him and simply extended his hand to Yuki and Yuki knowing that this guy never talks, understood what to do from his memories and immediately handed him 3000 Yen… The amount they agreed to through messages.

The hooded man nodded at him and Yuki said "Let's go, I can't wait to see this underground arena"

The hooded man looked at him deeply in the eye until he felt a shiver from how creepy Yuki kept unflinchingly staring back at him before he started leading the way…

He started leading Yuki through many alleyways, showing how good he knew the area and Yuki calmly followed him while noting down the way so that he can come here in the future on his own…

After walking for a while, they finally stopped on a road with not many shops in it and entered a bar called, the Fighter and the drunk.

'Quite a name they got here' Thought Yuki as they entered the bar, it had 3 bartenders, one was an old man with white hair styled backward, the other was a man with dark wavy hair hat reached near his shoulders and dark eyes and he was very well built for a bartender… and the last one was a hot and sexy woman that had pink hair and was wearing a very revealing outfit with a diamond tattoo under her left eye… Clearly, she wasn't the type that would be bothered by the people looking at her... Hopefully, because Yuki was staring at her...

Yuki noticed that all three of them started observing him the moment he entered the bar with the hooded man but each in a different way. The old man looked at him with an indifferent and calm look in his eyes, the muscular man had a cold look in his eyes that made it hard for people to approach him as for the woman… She had a very seductive and inviting look as she leaned on the counter of the bar to show her cleavage even further…

'I bet my life, seeing the nature of this world, that woman is probably a succubus and that muscular man is probably a werewolf or something… Tch this bar is screaming not normal I wish I got my monster in disguise mission here, I would have finished it right away... no wonder it has some ties with the underworld' This thought passed through Yuki's head quickly as he also analyzed the trio until the hooded man arrived in front of the old man and pointed at Yuki while doing some kind of hand gesture that the old man seemed to have understood, but his indifferent look didn't change at all…

The seductive woman however was attracted by this since the bar was still empty at this time and would only get full at night so she suddenly said "Silent, are you serious? This boy wants to go to the underground arena? What for?"

"Oh, they call you silent? Quite the fitting name" said Yuki while looking at the hooded man with a weird look in his eyes and the latter simply shrugged before he signaled again to the woman and her surprise only grew bigger

"Are you serious? he wants to fight? Boy, when was the last time you looked into a mirror? Well, I guess you might be a ghost so you can't see your reflection clearly" Said the sexy woman while letting out a chuckle while the old man kept studying Yuki indifferently…

"No, it's just that mirrors are too shy to reflect my greatness" said Yuki with a weird smile while looking all around this woman until she started having goosebumps for the first time in a while and covered herself quickly.

After all, she was used to people staring at her, both the drunk and the sober, but this time felt different… It had Yuki's special eerie touch…

'This kid is really creepy' thought Diana before the old man suddenly spoke "Kid, do you understand what kind of place the underground arena is?"

Yuki looked at this old man and nodded "Yes, I have an idea"

The old man whose name was Kazuki nodded calmly before he retrieved an envelope from a drawer in the counter and gave it to Yuki before he said "This invitation will allow you to participate in the event held today, the price is 10000 yen"

"Old man are you seriou-" Diana was about to ask but seeing the indifferent look on the old man's eyes, she suddenly stopped what she was about to say and Yuki on the other hand activated negotiations mode

"Old man, can't you see how tough life has been on me? How about you give me a discount? We are both handsome and I'm sure we could find each other useful in the future" said Yuki with an 'honest' smile and for the first time, the old man's indifferent look broke slightly as his eyes started twitching when he heard Yuki shamelessly say that they were both handsome…

'Oh, this kid is amazing, breaking the Boss's expression' thought Diana as her curiosity towards the boy kept increasing…

"Kid, if you try to register as a fighter in any other way, it would cost you more than this, either pay or get out of my shop" Said Kazuki, and Yuki actually knew that this was probably the case so he let out a long a sigh before he paid the bill with the money he stol- borrowed from Ashiya and Maou and took the envelope;

"Old man, you really are heartless, how about you give me some advice before I go to the underground arena to mend my broken heart" said Yuki with a sad face, and Kazuki's eyes couldn't help but flicker at this point 'Was this the kid's intention from the start? To ask for advice'

Kazuki's mind went through many thoughts before he said "I advise you to show no mercy, for they will show you none"

'This man is greedier than me' Concluded Yuki before he nodded at the old man who told him something obvious and nodded at Silent signaling that they should leave…

"Come by again, kid… If you are still in one piece that is…" Said Diana at Yuki while waving at him creating a seductive scene that made Yuki think 'This girl is more dangerous than that old man' before he nodded at her and started following Silent again who led him to Tokyo's arena…

Meanwhile, someone who didn't talk at all from the start finally spoke "Old man, why are you sending such a useless kid to his death?" It was the cold-looking man, Kuro!

Diana who was showing a seductive look was now having a calm look on her face, as if her previous behavior was merely a beautiful illusion and she waited for Kazuki's response.

Kazuki responded this time with an intrigued look on his face "Do you guys really think Silent would bring that kid here if he was useless? Kuro, as the champion of the underground arena, I suggest you go watch that kid's fight, maybe he's as interesting as he looks…"

Surprisingly! The cold-looking man was the champion of the underground arena Yuki was going to, and even more surprising is that the man they called Silent seemed to be far more mysterious than people would normally assume…

"What do you think Kuro, let's go together" Said Diana, and after some contemplation, Kuro finally nodded while thinking 'I can't wait to see what boss and Silent saw in this creepy-looking boy…' After all, the only two people he couldn't defeat were Kazuki and Silent!

Once they were near the Tokyo arena, the traffic suddenly increased as apparently an event was held today between two famous fighters, one was a Jujutsu world champion from Brazil while the other was Japan's Boxing Champion… And it was going to start at 7 PM with many other famous fighters on the card…

However, as the people were entering the arena from its big doors, Silent led Yuki to a side door with very few people going in and out of it and after knocking in it with a secret rhythm. A huge muscular man that appeared to be some kind of bodyguard and carrying a gun on his waist looked at Yuki's invitation before he looked at him and he couldn't help but feel that this kid was marching to his death, although he wasn't sure if he isn't already dead...

But it wasn't his business so he simply led them to a registration hall where Yuki registered for his first fight, which was going to happen at 6:30 Pm and it was only 15 minutes from now, he would get paid 20000 Yen if he won.

It wasn't much because it was only his first fight but it was still good enough for the current Yuki, especially since his main income wasn't simply fighting as he planned to bet on himself every single time!

After registering that he wanted to keep his appearance hidden, Yuki took out a white mask he bought earlier in the shape of a cat so that people won't refuse to fight him in fear that they might get cursed, and once everything was finished. Silent put his hand on Yuki's shoulder to get his attention and gestured for him that he was leaving now and made sure to gesture to him with 7 raised fingers which was the rest of the payment he owed Yuki…

"Don't worry, I will pay you the rest of the 7000 Yen once my fight is over"

Silent nodded at this before he took his leave while Yuki was led to a waiting room where many people were waiting for their turn to fight… They shot him all kinds of bad looks but Yuki simply ignored them and took a seat and waited for his turn to arrive… But trouble visited him before his turn could even come….