Start as a Silver Dragon and travel to Equestria

After Twilight Sparkle drank another sip of the potion, she understood the cause and effect and planned to go to the Eternal Free Forest with Rarity and the others to find the Tree of Harmony. Sparkling Red Crystal also wanted to go with them.

But he was caught by Discord.

"Hey, little guy, where are you going?"

"Help, why don't you go and help find the Tree of Harmony?"

"Luo Shu asked me to keep an eye on you." Wuxu's words made Shimmering Red Crystal a little confused

"Did Mr. Luo Shu know all this in advance? Then why didn't he intervene to protect Equestria? He is the Minister of Defense."

"Heh, this is a test... a test from all the rulers to Twilight Sparkle. So why do you think Princess Celestia, as a ruler, lets Twilight Sparkle solve certain problems?"

"Test her to see if she is qualified? Just like Mr. Luoshu tested me?"

Discord snapped his fingers, and a glass of iced cola appeared on the hoof of Shimmering Red Crystal. Discord scratched Shimmering Red Crystal's crystal mane and changed the subject.

"Shimmering Red Crystal, do you know why there are so few unicorns in the Crystal Empire?"

After taking a sip of ice cola, Shimmering Red Crystal was a little confused, but after raising the question, Wuxu threw the burden on Luoshu.

"Actually, Luo Shu also knows something. You can ask him. Okay, now let's get back to what we were talking about. What kind of pony do you think you will be in the future?"

"Yeah...same as Rokushu-sensei! Becoming a powerful person who protects Equestria while also being a scheming...uh...Ryoma?"

"Uh... Dragon Horse is me, although I am the Evil Dragon Horse, you can just call his species dragon." Discord looked at the shimmering red crystal, as if he saw the shadow of King Sombra in him, repulsion, unicorn, from the Crystal Empire, and a chance to turn evil would make it perfect, Luo Shu really knows how to choose horses

While talking with Discord, Shining Red Crystal realized that the iced cola on his hoof was finished, and Korra beside him was nowhere to be seen.

"Hey, where's Korra?"

"She went to Ponyville to look around."

Sparkling Red Crystal shook the Coke cup that only had ice cubes left, then put it down and planned to go to the Eternal Free Forest to take a look, but Discord grabbed him and put him back where he was.

"Discord, I need to help Twilight Sparkle and the others. It's too dangerous for a group of ponies to go to the Everfree Forest rashly. Those black vines are very dangerous. What's the matter?"

"Shimmering Red Crystal... What do you think is the meaning of life?"

Sparkling Red Crystal looked at Discord as if he was seriously ill. Why was he asking such a profound question to a child?

At this moment, Discord suddenly started talking to himself, completely ignoring the Glittering Red Crystal who had already left...

However, as Discord was talking, he looked at the time and realized something was wrong. This time, Twilight Sparkle did not come back to Ponyville to wait for him. After going through so many things, has she made up her mind?

......

In the wooden house of Wuji Peak

Luna opened her eyes and found herself sleeping in the tree house's quilt. She rubbed her eyes and felt a little strange. Why was it still dark? The steaming cup of milk on the bedside table next to her indicated that Luo Shu was nearby...

Luna yawned, opened the quilt, put on the armor, and went to the living room. The food on the wooden table was just the right temperature. There was a bowl of fresh salad, bacon and eggs, a bowl of yellow chicken soup, and a little dessert.

At this time, Luna's stomach started to growl, so she sat on a chair to eat. At the same time, Luo Shu and Yuan Zui came back from fishing with empty hands because Yuan Zui had eaten all the fish.

As soon as I opened the door, I saw Luna sitting on a chair eating obediently. When Luna heard the door open, she turned around and was stunned for a moment.

Luo Shu was hanging his fisherman's hat, and Yuan Zui was arranging the fishing rods, but the black and white color scheme reminded Luna of something bad...

Yuan Sin saw that Luna's expression was a little strange, so he explained:

"Luna, don't get me wrong, I'm not a good dragon... Bah... I am Luo Shu, and he is also Luo Shu... No, hiss... Why is it getting weirder and weirder... Ahem, let me say it again, I am Original Sin, you have seen me before, in the dragon world..."

After hearing the explanations from Luo Shu and Yuan Sin, Luna was still confused, but she understood one thing: she now had two Luo Shu, and she could hug them both.

"Luo Shu, Yuan Sin, what's going on with the sky outside? Why is it still dark? Did you forget to lower the moon?"

"No, Luna, the sun and the moon are both in the sky now. This is actually a test from Princess Celestial for Twilight Sparkle..."

"It seems that Sister has chosen the pony who will take over the throne. From now on, we can travel and have fun! There are many things I have wanted to try for a long time, but... what is Sister's test this time?"

"It should be Twilight Sparkle and the others who will face a problem that threatens all of Equestria without us."

......

As Shimmering Red Crystal followed the traces left by Twilight Sparkle and the others, he felt inexplicably uncomfortable looking at the crack in the canyon, and the closer he got, the stronger the feeling became.

"Did Twilight Sparkle and the others get into trouble? We have to go check it out."

When Shimmering Red Crystal resisted the strong discomfort and walked to the edge of the canyon, he saw the Tree of Harmony in the cave of the canyon.

The discomfort suddenly disappeared, but Shimmering Red Crystal didn't care about this strange thing. She used the magic power she had recovered to hold herself back, then jumped down. After landing, she looked at Twilight Sparkle and the others who were trying to save the Tree of Harmony in the cave.

Twilight Sparkle and her friends also discovered the key to saving the Tree of Harmony. They returned the source of harmony to the Tree of Harmony, so that its magic power would be enough to eliminate the black vines.

"Is there anything I can do for you?" Sparkling Red Crystal came to Rainbow Dash and the others.

"It shouldn't be possible. Twilight Sparkle has already thought of the best solution."

As Twilight Sparkle pressed the Source of Harmony onto the seemingly dim Tree of Harmony, the Tree of Harmony, after being in harmony with the Source of Harmony, bursts of seven-colored light burst out from the source of magic like a heartbeat, and wherever the light reached, the black vines disappeared into ashes...

Shimmering Red Crystal looked at the magical power of the Harmony Tree with shining eyes. The dazzling lights did attract children, but inexplicably alarm bells rang in Shimmering Red Crystal's heart.

As the magical light waves passed through him, he felt severe pain all over his body, which became more and more severe, but for some reason, he could not make a sound...

*Discord Coke helps*

But Twilight Sparkle and the others were attracted by the shining Tree of Harmony, and did not notice the Glittering Red Crystal who fell to the ground in pain behind them...

...

Luo Shu and his companions were preparing to set off at Wuji Peak, but Yuan Zui was a step slower because he found that the magic power he had left in the Flashing Red Crystal had been cleared. The magic power had already been integrated into the Flashing Red Crystal's limbs and bones, and clearing it might be harmful to him.

"The magic of the Harmony Tree? Never mind, I'll do it later... Hey... Wait, isn't this a good time..."

......

As the waves of light spread, the black vines in Ponyville and the Forest of Eternal Freedom disappeared completely. The last ones to disappear were the four black vines closest to the Tree of Harmony that seemed to be wrapped in something...

Light shone through the gaps in the black vines, and the black vines disappeared.

From them emerged Luoshu, Luna, the Princess of the Universe and the Queen of the Cocoon.

Princess Celestia looked at Twilight Sparkle and the others with a look of satisfaction, and then saw Shimmering Crimson Crystal lying on the ground behind them. However, Luo Shu's magic had already lifted Shimmering Crimson Crystal up.

Luo Shu was a little confused as to how the Flashing Red Crystal got here. Since Discord could easily eavesdrop on Original Sin's thoughts, how could he not have heard the conversation between him and Original Sin at that time?

However, the voice of Original Sin explained in Luo Shu's mind: First, Discord must have heard it, and second, he might have used the excuse that he was busy with something and neglected the Glittering Red Crystal, so that he followed Twilight Sparkle and the others and ran over here, and then because of the magic I left in his body... *ababa aba*...

"Hey, Luo Shu, but this is indeed a good opportunity. Wait first... then... then... finally..."

"Can you clarify what you omitted?"

“Hey, you’ll know in a minute.”

...

As the shimmering red crystal woke up, a black shadow separated from Luo Shu's shadow and hid nearby.

"Okay, Twilight Sparkle, Crimson Sparkle is awake. I'll ask him what happened. You guys go to Ponyville and deal with that first."

After Twilight Sparkle hesitated for a while, she sighed, lowered her head and apologized to Sparkling Red Crystal, not noticing his abnormality...

Sparkling Red Crystal smiled weakly and waved her hoof, signaling Twilight Sparkle not to worry.

...

After Twilight Sparkle and the others left, Celestial Princess and Cocoon Queen also returned.

Luo Shu was observing the Tree of Harmony with the Sparkling Red Crystal, while Original Sin was chatting with Luna about something to attract attention.

When Shimmering Red Crystal finished observing the box that grew out of the Harmony Tree and looked at the Harmony Tree itself, he saw the image reflected on the neat crystal cut surface...

...