Explanation

Yuga and the others watched in astonishment as Celebi appeared in front of them and, when they regained their senses, found themselves far from the Arus army's camp.

Craig, who had been thrown to the ground, looked at Celebi floating in the air, his face filled with fear, and stammered, "G-g-guardian... deity..."

Yuga impatiently kicked him. "This isn't your Arus Empire's guardian deity. You killed your own guardian deity. Don't you feel any remorse?"

After saying this, Yuga had Gardevoir seal his mouth shut.

"You finally show up. Now, please take me and Gardevoir back!" Yuga said to Celebi.

Celebi looked silently at Yuga and then shook its head.

Yuga asked, "Why not?"

Celebi remained silent, continuing to gaze at him.

"In that case, you have to tell us what's going on with Emperor Rode!" Yuga finally asked, sounding exasperated.

"He and the little one are one."

This time, Celebi finally spoke.

Its voice was mature and gentle, quite contrasting with its cute appearance. It was clear that this Celebi had lived much longer than Gardevoir.

The "little one" in its mouth referred to Gardevoir.

"We are one? I don't understand," Gardevoir said, completely unaware of anything that was supposed to be one with itself.

"What do you mean?" Yuga asked.

"More accurately, he is one with the little one from this era. His situation is similar to what you humans call 'split personality.' Due to intense stimuli, the little one's spiritual form split into two—one filled with resentment broke free, while the other, still kind-hearted, fell into a deep slumber. Otherwise, do you think a Celebi who held resentment for over a thousand years would peacefully coexist with you now? It's just that all its resentment was carried away by the other spiritual form. Only the slumbering little one remains, completely unaware, giving you the Gardevoir you see now."

After listening to Celebi's explanation, Yuga suddenly understood.

No wonder Emperor Rode was shocked by Gardevoir's presence; he clearly recognized that Gardevoir was the other half of his spiritual form.

The slumbering half of Celebi's consciousness had no knowledge of this situation, but Emperor Rode must be well aware of each other's existence.

He just didn't expect that Gardevoir came from the future, and his true other half's spiritual form was still bound within the Guardian Orb.

And Emperor Rode had hidden the Guardian Orb.

"Then do you know the situation of the past Gardevoir? Why didn't you intervene to save it? You should have been able to save it, right?" Yuga asked in confusion.

"I cannot interfere with history; that is our Celebi's rule. Moreover, if I had saved it now, you two would never have met. Would you be willing to accept missing out on each other?" Celebi replied.

After hearing these words, Yuga and Gardevoir fell into silence.

They had developed a deep friendship, and they truly couldn't accept missing out on each other.

"What should we do next?" Yuga finally asked.

"There are two things you must do. First, find an opportunity to eliminate the evil spiritual form of the little one. It should not exist in this world. Second, do your best to help the people of the Arus Empire."

"Help the people of the Arus Empire?"

"Yes, you, who know the history, should be aware that Arus is on the brink of destruction. When the time comes, the land will become barren, and life will be extinguished. What you need to do is, together with this human prince, do your best to assist the people of the Arus Empire and prevent them from perishing in that catastrophe."

"What? Arus is going to be destroyed?" Shadowsong asked, shocked by Celebi's words.

"I'll explain all of this to you in a moment. Let's hear Celebi out first," Yuga whispered to Shadowsong.

Shadowsong nodded, still somewhat dazed.

Although his parents were both dead, and he had become an orphan, the people were innocent, and he didn't want any disasters to befall his country.

"Even though I understand that the people of the Arus Empire are innocent, isn't this task too difficult? I'm afraid I can't do it."

Yuga really didn't want to take on this task. He had no connection to the Arus Empire, and, most importantly, the one responsible for the destruction of Arus was a Legendary Pokémon.

According to the inscriptions on the stone tablet, that Legendary Pokémon was an even higher-ranking existence than Celebi and was likely to be Groudon.

"I'm not forcing you to do these things, but if you want history to progress in the direction you know, this is the only way. I will provide you with a little assistance as well. And I can reveal one thing to you: if you help them, they will repay you in the future."

"Repay? What kind of repayment?" Yuga asked.

Celebi replied, "I can't say any more than that. You will find out in the future. So, how will you choose?"

Yuga pondered for a moment. "Alright, I'll do my best."

Celebi truly had a kind heart, unlike them ordinary people.

Celebi responded, "Just do your best! And now, let me do a little something as well."

As it spoke, Celebi gently touched the back of Yuga's right hand, creating a green leaf-shaped pattern on it.

Then, it flew over to Shadowsong and handed him a piece of transparent, unidentified green leaf-like material.

Yuga and Shadowsong were quite surprised to see this material, as it was the same one used by Mr. Kuni'o in the temple to summon Celebi.

It turned out that this leaf had been passed down from Shadowsong, and one of its functions was undoubtedly to establish a connection with Celebi.

It seemed that Shadowsong was indeed the founder of their lineage.

"What are these two items for?" Yuga raised his right hand, examining the green leaf pattern on it, and asked.

"You'll figure it out as you go along," Celebi replied cryptically, leaving them with a little mystery.

"Now, I'm going to do one last favor for you."

Yuga was surprised and asked, "There's more?"

Celebi nodded. "Release all your Grass-type Pokémon."

Though Yuga didn't understand, he followed Celebi's instructions and released all his Grass-type Pokémon.

Soon, he understood what Celebi intended to do. Celebi conducted an awakening ceremony for Yuga.

The previous awakening ceremony was not performed by this Celebi, and not all the Grass-type Pokémon were present at the time.

This time, Yuga had all his Grass-type Pokémon gathered.

After the awakening ceremony, Yuga felt a significant enhancement of his special abilities, and his Grass-type Pokémon received numerous benefits.

Most importantly, Yuga could now practice with all his Grass-type Pokémon, significantly increasing the speed of their progress.

However, the potential of Yuga's Grass-type Pokémon were all in above blue range. Even after this slight improvement, they had not reached the level to break throught to Indigo.

The only one to break throught it potential was Deerling. Deerling's potential were already very close to Indigo, and after this minor boost, it finally entered the Indigo range. Additionally, his Snivy evolved into Servine during this process.