Sitting around the living room are the Joseon prince and two other people who he had known as Choi Soobin and Choi Yeonjun.

Apparently, these people were also transported to Korean Empire from Joseon but the difference is that they had been in this modern country far way longer than the prince.

Meaning that the prince's theory of the green jade is right.

 There are more than one green jade in the world and someone had been using in the wrong way.

Seeing how messed up Joseon had become right after Prince Han's disappearance, it's probably because someone had been messing with the time.

There are times when the wars back then were predicted but there are also times when it's not as if someone is doing it on purpose.

Yes, it depends on how well protected the country is but to predict every little moves the enemy do, isn't that too predicted?

It was stated that Joseon during King Seonjo's reign was an unpredictable country.

They can be as sharp as a tack but oblivious as Mubarak. 

The country was filled with many intelligent and bright people yet, they can be very oblivious to the eyes of enemies that were watching them.

This is why Joseon wasn't at all a rich country.

"But who brought you here? You don't hold the green jade, do you?", the prince asked the two. They seem genuinely worried for Minho, who had been missing for the past couple of hours.

Both of them were hesitating to answer the prince's question but after much hesitation and one cold glare from the Joseon prince, one of them speak up.

It seems like the prince still hold his power of being one of the most feared prince from King Seonjo.

The guy named Yeonjun is the one who talk first, "Emperor Yi Gong.. Was the one who brought us here Your Highness.."

Hearing the name mentioned made the prince widened his eyes. "Yi Gong hyung.. Is here?", he eagerly asked, wanting to meet him.

Even though he knows, he would just be met with someone that he's already familiar with.

"Not anymore Your Highness, that is the reason why we are here in the first place, to beg you for help"

Jisung sit up straight and take the green jade in his hand.

A few days before, after meeting Minho at the palace, the prince forced Jeongin to explain more about the jade to him. Although he didn't tell the latter about Minho having the same exact green jade, he still wanted to make sure that it was real.

It could be just a normal jewelries for all he knows so better not mix those two up.

One is used for accessories while the other one is used for time travelling.

"Are you saying.. I need to go back to Joseon and bring him back here?", the prince asked, feeling confused about the man's real identity, "Who is he exactly??"

Then the guy named Soobin answer him this time, "He is Emperor Yi Gong, Your Highness.."

The Joseon prince furrowed his eyebrows at the answer. Now this is where it gets more confusing.

If the Minho that he knows as a Korean Empire citizen is actually Yi Gong, that means the man have already used the time travelling jade more than he did.

No wonder why Minho seems like he was familiar with Jisung when they first met each other at the studio.

"There is one thing that Your Highness need to know before confronting him", with that being said, it snapped the prince out of his thought and focus on the two.

"Emperor Yi Gong is Lee Minho's subconscious.."

Which means that they don't realize they are the same person and that their behavior could effect one another. That explains why he always acts as if he was two different person.

But how could Jisung convinced Yi Gong to go back to Korean Empire as Minho when the man doesn't even know who Minho is.

And not to mention that he had never use the time travelling jade before, it was all Jeongin's doing.

If he needs Jeongin to help him out, he needs to explain everything to the boy from the very first start and that will take a long time.

They need to go back before Yi Gong could change any of the history.

He takes out his phone and dialed his best friend's numbers while the other two guys were watching him, waiting for actions.

After a few rings, the 18 year old boy picked up, "Oh hyung, why?", the boy greeted the other lazily as he is still in his shift for work.

"Jeongin ah, can you come over? I have an emergency right now and I don't think I can do it alone.. It's about the green jade"

"What? What about it??"

"Look, I will explain it all once you get here but you need to hurry!"

Hearing the panic voice of the older boy really does make him panic too. He thought that Jisung might be in danger or is being sucked back to the past or something.

He tried to glance inside the Prime Minister's office but since there's no one, he rushed to the assistant's desk, "Chan hyung! I have an emergency at home and since Mr. Lee is not in the office, I will be taking my leave now, okay?"

"Wait, what do you mean he's not there- Yah! Where are you going?! YANG JEONG-", he sighed once the young guard is out of his sight.

Weirded out by what the other said, Chan walked towards the Prime Minister's office and glance through the glass door.

Widening his eyes as he realized that the Acting Prime Minister is not in there, he called out for securities and told them to check the CCTV while he was trying to call Minho himself.

But to no avail, the calls won't go through the other's phone and the CCTV footage had also been deleted.

It's either the man had sneaked out or he went missing.

Jisung rushed to the door when he heard the doorbell and went to open the door, "Hyung! Are you okay?!", Jeongin asked as soon as he saw the prince.

"Yes, but I won't be if you're not with me"

"What are you tal-"

"We need to go back to Joseon"

The 18 year old boy quickly denied his request right after the prince said that. Seeing this reaction from the boy, the Joseon prince knew that he was hiding something from him.

So he had no choice but to use his power as the prince, "This is not me asking for permission, this is an order", he strictly said.

He doesn't care if the boy want to rebel against him anytime but THIS, is not the time to do so.

"Hyunggg.. You do know that you are known as the missing prince of Joseon right? So if people see you-"

"They will not remember me now, I know", he cuts the latter's sentence. Of course he knows, he is not that oblivious.

Even when the prince knew that, he still won't budge a little from his decision making Jeongin slowly go insane, "And if that ever happens, you do know that I might not remember you right?", he tried to scare the prince a bit.

But that was unsuccessful when Jisung reply, "That's why I need you to take me there"

Jeongin feel scared seeing how determined the prince is on wanting to go back to Joseon after a month of being in Korean Empire that have everything that he needs.

The Korean Empire is far better than Joseon with its food, daily clothes, houses, works, necessities and many more.

Why would the prince go back to a place and time when the electricity wasn't even discovered yet.

After all those adventures and exploration that Jisung did here, he wanted to go back? That is completely absurd in Jeongin's part of the argument.

And it seems like the Joseon prince noticed the inner struggles that the boy was having with himself so he goes to console him.

"I'm not saying that I want to go back as a prince, you fool.."

Jeongin look at the other with confusion plaster all over his face, "What do you mean?", he asked, wanting the prince to tell him his real intention.

"We need to stop Yi Gong on whatever he's planning on doing"

"But the future might chan-"

"It will change if we let him do what he wants, we need to stop him before that"

Jisung then dragged Jeongin to the living room and that's when he saw the two guys waiting for them. The 18 year old boy widened his eyes once he realized they are.

Choi Soobin and Choi Yeonjun are his coworkers. They were all given the same task by Changbin and that is to keep close eyes on Lee Minho.

But Jeongin didn't know that so he was very shocked when he saw them here, "You two-"

"Your Highness, it is reaching afternoon and it's better for Your Highness to get going before it become dark"

The Joseon prince nodded, obviously agreeing with him and ignoring his best friend at the same time.

He is planning to tell and explain everything to him once they get to Joseon since he is pretty sure that it will take awhile to convince Yi Gong.. Or Minho or whoever they are.

But before they could get going, Jisung quickly ran into Hyunjin's room where he kept all of his Joseon stuff there since that man thought that it was just his toys.

Searching for something and hoping for it to be there, he finally found the gold that he kept hidden from everyone.

It's not like there's any use in hiding since Felix and Hyunjin won't believe him anyway.

He took the gold with him and head back to the living room, ready and confident to go back to his hometown.

"Where the fu- I mean, where did you even get the gold from?", Jeongin asked when he saw what the prince was gripping in his hand.

Jisung giggle and reply cockily, "I'm a prince, duh, I at least bring one gold with me wherever I go, who knows? I might sneak out whenever"

Jeongin should've expected that answer from him after two years of knowing the prince but he didn't. Prince Han who is known as Yi Je is also unpredictable, like his country.

The boy turned to the other two guards in the room, "If Mr. Seo was released later, tell him everything.. In the meantime, don't bother to stress him out with this one", he instructed them.

He knows that the older know when he will be leaving because this green jade will light up brightly whenever it's being used.

But Jisung doesn't know that, thus why he never mentioned that Minho has gone back to Joseon as Yi Gong earlier.

If his was used for time travelling then why are the other green jades didn't light up?

"Of course, have a safe trip you two", Yeonjun gave them a comfortable smile. He could only hope that nothing will go wrong in the middle of the trip.

Even if something did happen, those who travel to the future and stay there from the past or go back and forth between the future and the past will always be aware and remember everything.

That is why Jeongin was able to remember his past before the Korean Empire became a peaceful nation.

But if Jisung use his green jade to go back to Joseon, the same jade that Jeongin used, the 18 year old boy won't be able to remember the prince.

Jisung returned that smile of his and nudge his best friend besides him, telling him that it's time to go. "Now? Wearing these?", Jeongin pointed at their modern outfits.

There is no way that they would be able to fit in with the people by wearing these kinds of outfits that are too inventional for them.

"Do we really need to change?", the prince whined, wanting to just go already and stop the waiting.

Jeongin sighed and nodded. They can't risk being caught as a time traveler or worse, a foreign intruder so it's better to disguised as themselves rather than just leave it be.

And that's how the two ended up in the tourist place, Gyeongbokgung Palace and actually bought the hanboks instead of renting it.

They will be gone for more than one day so they don't want to be accused as thieves when they ever come back later.

The two made sure that they already have everything with them, including the gold and the green jade.

Jisung feel a sudden feeling of nervousness and Jeongin noticed that so he reassured that everything will be fine as long as the other stay with him, "What if we lost each other again?"

Ah, that. The one where Jeongin ended up in a meeting room while Jisung ended up in a zoo. That was a very ugly landing, they gotta say.

"Then we'll find each other, the hut further from the palace, let's meet there"

The two had built a hut where only the two of them know saying that it was their hiding and hanging out spot at the time.

It took a lot of time and hard works but they still did it. It was a very impressive work considering that it was built by a 15 year old and 14 year old.

They of course not sure if that place would still be there or not since they will be going back to the time after the Korean Japanese war which means there are possibilities that the hut was already ruined during the war.

Holding each other hands, the two boys try to calm themselves down from the tension.

They practically preparing for a war with Yi Gong and Minho, those two combined will be very hard for teenagers like them to defeat, or at least convince.

But they are going to do everything in their will power to stop the man from messing with the timeline and ruined the history.

"You ready hyung?"

"Sure I guess.."

Jeongin chuckled at the respond and close his eyes, gesturing the older boy to do the same too.

He thought of the time they will be going and just like before, everything around them went silence.