My story starts with an alternate ending. Gi Cheol tries to push Eun Soo through the doorway to heaven but Choi Young grabs her and kills Gi Cheol. The doorway closes.

Eun Soo looked down at her hand linked tightly with Choi Young's. Even though the doorway to her world was now closed for the next 67 years, she smiled from ear to ear. The love of her life was safe, the awful people that wished them harm were dead. How could she not be happy?
"Captain! Eui Seon!" Dae Man, leading dozens of Wu Dal Chi members, ran up to the couple with a massive grin. "You're still here! You didn't go to heaven!"
Choi Young frowned. "Why are you here? Who is guarding the palace?"
The bouncy young man bowed smartly. "The senior members are there, captain." He turned a shy smile to Eun Soo. "We wanted to make sure Eui Seon made it back to the palace safely."
Eager nods from the other starry-eyed warriors met Dae Man's proclamation.
Choi Young frowned again. He was becoming extremely annoyed with the attention other men paid to his woman. She is mine!
"We will spend the night in the village and continue to the palace in the morning, understood?" Choi Young grunted, wrapping a possessive arm around Eun Soo's waist and eyeing each warrior in turn.
"Yes, Captain!" They chorused and set off at a brisk walk.

Dae Man kept up a constant stream of chatter during the long walk to the village. Eun Soo wanted to speak privately to Choi Young but didn't have the heart to silence the exuberant boy. Her mind was in chaos.
On one hand, she was thrilled to finally be with Choi Young. But on the other hand, she was terrified of the future. How were they going to live together? Was she going to be his girlfriend? Did they even have girlfriends in this time period? Marriage had never been mentioned before…
Her eyes went wide. What if he never wanted to get married? She could completely understand since his fiance had died tragically. What if he'd given up on love? What if she'd doomed herself to a one-sided affair?
The man in question must have sensed her mood because he smacked Dae Man on the head and told him to leave them alone. He cast her a sidelong glance as they walked. "Are you okay?"
She turned a overly bright smile on him. "Yep!"
He didn't look mollified but he didn't press.
They reached the village at dusk. Choi Young secured them a private room in a nice hotel and gave the Wu Dal Chi instructions to guard the hotel in shifts. Those that weren't on guard duty could sleep in the main room of the hotel.
"I think I love horses," Eun Soo said, rubbing her aching feet. She sat on a soft palette in her small room as Choi Young checked the locks on the windows.
"You are not good at walking long distances," he said matter of factly, kneeling beside her.
She stuck her tongue out at him and he gave a tiny grin that made her heart pound faster. God he was handsome when he smiled.
"Good night," he said, touching her face gently. He left the room and settled outside of the door.
Eun Soo pouted. Why did he insist on keeping himself distant? They slept in his room at the palace together many times. So why did he leave her in the room alone now?
Maybe he's having second thoughts, her mind whispered slyly.
No way, she assured herself. But the niggling worry remained. She tossed and turned on the palette for what seemed like hours before she'd had enough. Sitting up, she called softly towards the door.
"Choi Young?"
Her knight burst through the door, sword ready. "What is it?" He demanded, dark eyes scanning every inch of the room for a threat.
"I'm fine. But I need to talk to you."
Choi Young lowered his sword and raised a brow. "You need to talk? Now? In the middle of the night?"
She nodded and patted the palette next to her. He hesitated for a moment before setting his sword on the floor and settling cross-legged before her.
The bright moonlight lit his elegant features enough for her to see him clearly. He watched her warily, looking extremely uncomfortable.
"What are we going to do?" She asked simply.
He frowned. "We are going to the palace."
"I know that. I mean, when we get there. What are we going to do?" She shifted and her hands knotted in her lap. "Am I going to live with you?"
"Of course. You are mine to protect forever."
A warm tingle echoed through her body. "So…are we going to get married?"
Another adorable frown. "How else can I protect your forever?"
Even though her heart was thrumming with excitement, Eun Soo couldn't help but give an exasperated sigh. "Okay. If we are going to be in a relationship with each other, you are going to need to learn how to communicate with me."
He cocked his head and a lock of hair fell over his eye. "Communicate?"
"Yes. How can I know what you are thinking unless you tell me?" She asked.
"I did tell you. I said I would protect you forever and I asked you to stay with me." He blinked in the darkness. "You said yes."
She sighed inwardly this time. Oh, boy. Life was going to be interesting with this stoic, very literal warrior. "In my world, a man asks a woman if she wants to marry him. It's a very clear question with a clear answer."
"So it is a custom from your world," he nodded in understanding. "Would you marry me?"
"Yes!" She squealed, launching herself at him and knocking him flat on his back.
Choi Young was too shocked to respond for a moment but them wrapped his arms around her. "I think communication is a good thing."
She giggled and lifted her head, enjoying how her body fit on top of his so comfortably. "Yes, it is."
His smile faded and he gently grasped the back of her head, pressing his lips to hers. Eun Soo dug her fingers in his hair, kissing him back with everything she had. Their tongues began to intertwine as their hands tightened on each other's bodies. The air was heavy with desire.
Choi Young was the first to pull away. Breathing hard, he quickly sat up and scooted from his flame-haired woman. "I am having trouble keeping my vow, my love."
She swayed in a lightheaded haze, feeling like a teenager in love for the first time. "Vow?" She asked in confusion.
He nodded. "Wu Dal Chi take a vow of celibacy."
"What?!" She squeaked, her head clearing. "Then, are you not allowed to marry?"
"No," he admitted, taking her hands in his. "But I will petition the king. If he will not allow us to marry, then I will resign."
Tears gathered in Eun Soo's eyes as her heart swelled. "How did I get so lucky?"
And again, she pounced on him.

Choi Young propped himself on his elbow and watched his future wife sleep. At her insistence, he had stayed with her the whole night, spooned protectively around her small body. It had tested every ounce of his warrior-control to not claim her lips again. Even now his body was hard and tight with desire.
"Good morning," she whispered with a smile, slowly opening her beautiful eyes.
His gaze lingered on her full, pink lips and his blood pumped faster. "Yes, it is a good morning."
Not able to help himself, he leaned down for a kiss.
"Captain. Eui Seon. The morning meal is ready," Deok Man's voice, slightly muffled by the door, was terse.
"Understood!" Choi Young growled at the door, knowing the time for enjoying a leisurely morning with his fiance was over.
They entered the hotel's large main room and settled at one of the trestle tables. Eun Soo seemed oblivious but Choi Young immediately noted the accusatory glares from the members of Wu Dal Chi. All were bent silently over their dishes, watching them. He gave them all a black look and ate.
"Delicious!" Eun Soo chirped, getting up from the table. She let her hand slide over Choi Young's wide shoulders. "I'll go get my stuff."
As soon as she had left the room, Deok Man, Dae Man, and a few other members strode purposefully over to Choi Young.
"Captain, we wish to speak to you about something important," said Deok Man in an authoritative voice. The warrior had his legs planted and arms crossed.
Choi Young gave his subordinate a withering look that sent all but Deok Man and Dae Man scurrying back to their tables.
With a thick swallow, Deok Man began. "Captain, Eui Seon is like a sister to us all." He fidgeted under Choi Young's thunderous stare but forged ahead valiantly. "We think that it is not…right…that you dishonor her by spending the night in her room."
Choi Young shook his head in amazement. He couldn't believe how much courage this warrior had. If he wasn't so angry, he might actually applaud Deok Man.
"Listen carefully," he gritted out. "Eui Seon is-"
A giggle stopped his tirade. Eun Soo came up beside him. "Deok Man! Dae Man! You two are so sweet! I've never had brothers before. I really appreciate your concern for me."
The two warriors blushed and puffed their chests out beneath Eun Soo's beaming smile. Choi Young rose from his seat, intent on beating the crap out of the preening men.
"But," Eun Soo continued, putting her warm hand into his. "You don't need to worry. Captain and I are getting married."
The twenty-two Wu Dal Chi that had all been listening intently cheered. And when the shouts of "congratulations!" had died down, Dae Man ran a hand through his crazy hair in confusion.
"But…Wu Dal Chi can't marry!"
Deok Man smacked the back of his head. "Who are you talking about here? It's Captain! He's the most powerful Wu Dal Chi to ever live! He will find a way."
Eun Soo looked up at her future husband. "I also believe that he will find a way. He's that amazing."
Choi Young met her eyes and couldn't help but smile.