In "The Red Sleeve Cuff" episode 9, even though Sung Deok Im (Lee Se Young) tries to push Yi San (Lee Junho) away, she doesn't want the crown prince to suffer from his enemies, so she protects him in any way possible.

'The Red Sleeve Cuff' Episode 9: Yi San's First Procession Outside the Palace

The crown prince was disappointed and heartbroken after hearing Sung Deok Im's cold response that there was no special meaning for her meeting him during childhood.

Meanwhile, the King called Yi San to tell him about his procession as part of the process of passing the throne to the crown prince.

King Yeongjo (Lee Deok Hwa) gave a token to his grandson as a key to have access with the soldiers he can call anytime when a war occurs.

Head Court Lady Jo (Park Ji Young) heard the news that the king allowed the crown prince to have a procession. This gave her the idea to attack the palace and kill Yi San as he is close to becoming the king.

Sung Deok Im Falls Asleep in Crown Prince Yi San's Room

After the procession, the court ladies prepared for the crown prince's arrival. Lady Seo tasked Deok Im to lay on Yi San's blanket to make it warm, but she warned Sung Deok Im to not dare fall asleep before the crown prince gets in.

But the court lady ended up falling asleep. Moments after, Yi San entered his room and found Deok Im on his bed sleeping peacefully. All the heavy thoughts and worries vanished for a while while staring affectionately at the court lady.

Meanwhile, he asked his loyal guard Kang Tae Ho (Oh Dae Hwan) to protect the room and make sure no one would enter. Even without knowing why, Tae Ho followed him to find out t was Sung Deok Im who was inside. He felt betrayed for a moment by his Royal Highness.

Sung Deok Im Warns Yi San About His Enemies

Court Lady Seo (Jang Hye Jin) was framed by Kang Wol Hye (Ji Eun) to stay away from the palace to fulfill their mission against the crown prince. Sung Deok Im escorted Lady Seo from going out and the lady used it to confess about the secret organisation headed by Lady Jo.

When they arrived at their destination, they found out Lady Jo planned something against the crown prince, which signaled that Yi San was in danger.

Deok Im painted the symbol she saw on the kite inside the palace. It was a code that tells an enemy is about to arrive.

Yi San saw the kite and immediately gathered all his men to prepare. They were shocked to know their guns and weapons were damaged.

Yi San and His Guards' Intense Fight with the Assassins

The assassins were trapped in the palace and the crown prince used his bow to signal that a battle was about to start.

The palace was in a chaotic state and more assassins came. Thankfully, Hong Dong Ro (Kang Hoon) fulfilled his duty of bringing the soldiers with him to fight against the enemies.

They saved the crown prince and the remaining guards. Yi San was thankful for Dong Ro's genuine gesture.

Yi San went out to unwind after the fight against the assassins when he saw Sung Deok Im running towards his direction. He was happy to see her once again, so he started running towards her.

Yi San was quick to catch Deok Im into his arms. He was moved by the court lady warning him about the enemies, and he knew from the start that the moment he saw the kite, it was Sung Deok Im who made it.

IN CASE YOU MISSED IT: CONFIRMED! Lee Junho & Lee Se Young's 'The Red Sleeve Cuff' to Extend Until Episode 17

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Shai Collins wrote this.