Yue Xiyuan looked at Yan An with tender eyes, gazing at her intently without any attempt to conceal the deep affection in his eyes, which surged towards her like a turbulent wave.

In his heart, there was no woman more lovely than the one before him, and he could never get enough of looking at her.

Yan An felt his burning gaze. "What? Are you also captivated by my stunning beauty?"

"I am completely convinced."

Yan An's consciousness flashed, and he took Yue Xiyuan out of the space.

Perhaps because it was dark, there were no candles lit in the room. Yue Xiyuan slightly tilted his head and leaned over her.

In the pitch-black room, even the sense of touch became dulled, and Yan An pulled Yue Xiyuan into his arms.

Her hot body pressed against him, her warm breath brushing against his brow, causing a faint itch that gently tickled his heart.

The sensation was as light as a feather brushing against you.

Yue Xiyuan, who had intended to light candles, was now burning with heat, swallowing repeatedly, and even his voice had become hoarse.

"An'an..."

This is exactly the result Yan An wanted; he is extremely charming when he is deeply in love.

From peak to trough, from the perfect inverted triangle to the clearly defined V-line, it's hard to part, from the table to the bed...

After an unknown amount of time, their clothes were already tattered and torn.

Yue Xiyuan gently grasped Yan An's chin and bit her lips hard.

"Little thing, I'll definitely eat you up after the wedding."

The clear tactile sensation made it perfectly clear to Yan An that Yue Xiyuan... was someone he had been overthinking.

After covering Yan An with the blanket, Yue Xiyuan lit the candles in the room.

Turning his head again, the beautiful sight not yet covered by the blanket made Yue Xiyuan suddenly feel a little wet at the nostrils.

The regent, who was usually cold-blooded and ruthless, was actually bleeding from the nose.

"This seems to be the second time you've had a nosebleed. I wonder what the Regent will do to me then?"

Yan An slowly lifted the blanket from her calves until her fair and slender thighs were revealed.

Yue Xiyuan could no longer hold back and turned away.

Originally, only one nostril was bleeding, but now both are bleeding.

"It's getting colder, An'an, please take care. I...I...It's getting late, I'll head back now. See you tomorrow."

After saying that, Yue Xiyuan left Zi'an Courtyard without looking back.

But a moment later, he returned.

"I forgot my things."

Wol Seok-won covered his nose with one hand and held the 'beauty' jars in the other, but he couldn't lift them no matter what he did.

The regent had never been so disheveled before.

"Let me help you."

Yan An wanted to get off the bed to help Yue Xiyuan pack up the bottles and jars, but Yue Xiyuan stopped her.

"No need! No need, I can manage on my own. Just stay in bed and don't go anywhere. Just stay there and don't go anywhere."

Yue Xiyuan, fearing that Yan An would not listen, repeated himself again.

Yan An leaned against the bedside, her face resting on her hand, her bright eyes sparkling, her red lips slightly curved, exuding an indescribable charm and allure.

Yue Xiyuan took off his outer garment, put on the 'beauty' costume, and turned his head to see Yan An's smooth skin with a thin layer of rouge on it.

His gaze inadvertently fell upon her exposed shoulder, which exuded a faint fragrance that was undeniably alluring.

Yue Xiyuan's breath hitched, and a strange restlessness stirred within him once more.

"I...I'm leaving. You should get some rest."

With Yue Xiyuan's presence gone, Yan An pulled the blanket over herself. "So cute!"

Yan An recalled how she had teased him earlier, and was surprised to find that Yue Xiyuan was still as innocent as before, and had gotten a nosebleed before anything had even happened.

Yan An, who has an excellent sleep quality, was not affected at all and fell asleep quickly after Yue Xiyuan left.

Upon returning to the Regent's Palace, Yue Xiyuan happened to run into An Si again.

"Wow, our princess is truly brave! She actually tore the prince to shreds like this. She's a heroine among women, worthy of being called a princess!"

An Si looked at his lord as if nothing had happened.

This made An Si's suspicions seem even more real.

"It seems we can't delay any longer. We should ask Doctor Su to get some medicine as soon as possible."

An Si went to Ji Ren Tang that very night and knocked on Su Jingzhan's door.

"Dr. Su, are you asleep? Dr. Su? Are you asleep or not? If you're not asleep, open the door for me, I need to talk to you."

"Why are all of Yue Xiyuan's bodyguards just like him? What are they yelling about in the middle of the night? Are they even asleep? With you yelling like that, who can sleep?"

Su Jingzhan rubbed his sleepy eyes and yawned several times.

"Hehe, Dr. Su, don't be angry. I came to see you because I have something to discuss. If it weren't urgent, I wouldn't have bothered you so late."

Upon hearing that the situation was urgent, Su Jingzhan immediately became wide awake and full of energy, his words filled with tension.

"Has something happened to my junior sister?"

"No."

"What happened to Xiyuan?"

No, not at all.

"Who's in trouble? Could it be the Emperor again?"

"Since nothing has happened to you, why does Doctor Su think something must have happened to someone?"

Su Jingzhan glared at An Si, wishing he could strangle him right there. "Who am I?"

An Si scratched his head, completely bewildered by Su Jingzhan's sudden question, "Who am I?"

"Dr. Su, is something wrong?"

"...Brother, I'm a doctor. No one's in trouble. Why are you looking for me so late at night? What's wrong?"

"It's not that no one got into trouble, it was my prince."

After finishing his sentence, An Si looked around like a chicken thief.

"What? You want to steal my chickens? Jirentang is all about medicinal herbs, we can't have chickens there. If you want to steal chickens, turn left and then right outside the door."

"I'm not trying to steal chickens, I need to talk to you about something. This place isn't safe, let's go inside and talk."

Before Su Jingzhan could react, An Si pulled him into the room.

"Speak, what is it? If you can't give me a straight answer, I'll use you as a test subject, and I'll use you to test my newly developed drug."

An Si shivered, feeling a chill run down his spine.

"Dr. Su, you should just focus on making antidotes with the Princess. Why bother learning how to make poisons? It would be too dangerous if you encountered it yourself."

"Who said this is poison? This is a poison more potent than poison itself, and an antidote more powerful than any antidote. In short, it's the 'poison-fighting-poison antidote pill'."

Upon hearing Su Jingzhan's explanation, An Si's mind went completely blank.

"Isn't this still poison?"

Su Jingzhan's eyes widened, his gaze filled with threat and intimidation.

"If you're lucky, it'll be the antidote; if you're unlucky, it'll be poison. So you'd better have something important to do, or you'll become my first guinea pig."

While "dark four" doesn't necessarily mean "white mouse," it certainly isn't a positive term.