Certainly, here is the translation for the passage, adhering to all the guidelines:

I hastily changed clothes and ran quickly to the entrance of the imperial palace. Though it was a dark night without a single star, the many torchbearers made it as bright as if it were midday.

I saw Levanfell’s back, as he had come out before me.

And beyond Levanfell’s back.

“……Brother!”

I saw the face of my family, whom I missed so much.

I didn’t think I would miss him, but as soon as I saw my brother Karayan’s face, an unknown emotion welled up within me.

“Karayan, Brother!”

Karayan, who was glaring at Levanfell as if he would tear him apart, turned his head. And the moment he saw me, his bloodred eyes softened.

“Terry.”

Karayan called my name. Then, the superior spirits who had been baring their teeth at the imperial knights vanished in an instant.

“Come here. My sister.”

My only family. My brother spread his arms towards me. Seeing that I was looking at Levanfell, he gestured to the knights who were surrounding Karayan to step aside.

I ran to him and hugged Karayan tightly.

“……It’s okay now. I came too late, didn’t I? I’m sorry.”

Karayan embraced me, patting my back as if to comfort me. His caressing hand was so gentle that it felt almost like a mother’s touch.

Meeting my family after such a long time was as warm as ever. I left Karayan’s embrace and cheerfully inquired about his wellbeing.

“How did the investigation of the epidemic in the province go? Is it all over?”

“……More or less.”

“More or less? You should have finished it properly, especially since you didn’t even come to my wedding.”

Mixing worry and petulance, Karayan’s longsuppressed anger flared up again.

“I only heard about your marriage recently. I rushed here as soon as I confirmed it.”

I was sure the king had kept the news from reaching Karayan’s ears. Understanding the situation, my lingering feelings of disappointment subsided.

“I see. Well, that’s just like you, Brother. Not coming to my wedding……”

“Don’t worry about that.”

“Huh?”

Karayan pulled me behind him, bewildered, as wolflike spirits appeared again, sharing his emotions.

“This marriage is void.”

The wolf spirits bared their teeth at Levanfell. As they prepared to attack, the scattered knights regrouped to shield Levanfell and surround Karayan.

“……Huh?”

Caught off guard by the unexpected confrontation in the middle of the night, I looked back and forth between Levanfell’s back and Karayan’s.

“Brother. Wait a minute……”

“That’s enough. There’s nothing more to say. The king did this on his own. I’ve heard a lot about the tyrant of the Reonharta Empire.”

Karayan spoke coldly, mocking. He grabbed my wrist tightly, shouting loudly for all to hear.

“You think I would let you marry such a tyrant?”

That was already a done deal. The wedding had been held, the first night had passed, and it was already long past.

“Brother. I’m fine……”

“I’m not fine!”

Karayan turned his head towards me. Always cold to others but foolishly kind to me, my brother.

On my brother’s face was a mix of apologies to me and selfloathing for himself.

“I left you because the epidemic was dangerous, but that wasn’t it. Your mother asked me to take good care of you, and I couldn’t even do that one thing right, so you ended up with that tyrant……”

“Listen to me first.”

“Didn’t that tyrant hit you? Didn’t he threaten to kill you?”

“No, he didn’t!”

“Terry. You are my only family, my sister. You must be happy. I promised your mother that. So……”

Levanfell pushed the knights aside and stepped forward. Sensing movement, Karayan quickly turned his head.

“Sorry to interrupt the tearful reunion of the siblings, but considering the many eyes watching, why don’t we go inside and talk? As you can see, Prince Lupeon, you are an invader in the empire.”

“I have no intention of entering the imperial palace with a smile, Emperor.”

Karayan’s superior spirits growled at Levanfell as if ready to bite him. The tense knights gripped their swords.

The situation was on the verge of breaking.

“She is the Empress’s family. Everyone, sheathe your swords.”

Levanfell, stepping forward, ordered the knights. Relim tried to add something, but Levanfell remained relaxed, like a sovereign.

He rubbed his chin, looking at the wolflike superior spirits as if intrigued.

Certainly! Here’s the translation, following your instructions:

“An advanced elemental mage who can control the water spirits. A rare talent that would be a waste to have in the Lupeon Kingdom.”

“Most of them would sell their bodies when they find out.”

“There’s always an exception.”

Levanfell walked through the wolves with grandeur and stood in the center. Even Karayan seemed somewhat surprised at his audacious behavior.

Levanfell stood facing Karayan. There was suppressed anger in his expression, without a hint of amusement.