Esther remembered the day, roughly a year ago when she ran out of Hell's castle, sprinting in full speed. After learning that Lucifer had planned on everything and they weren't in danger, she quickly wanted to check on Beelzebub's condition as she had pushed him and teleportated him away from the castle.

There was only one place she had in mind when it comes to the safest place and she had rushed her way into the cave where she had once lived in while serving Leviathan as his servant; the place where Adelaide had met Leviathan first as well.

When she had came there, she heard a blasting loud noise that rang on her ears, causing her to frown severely. 

"But this place should be the safest," whispered Esther to herself, thinking that Beelzebub might have attracted some kind of danger and was fighting at the moment.

The moment she entered, she was met with a pair of bright red eyes, glowering deadly toward her. Chills rides Esther's skin and he looked at the demon who looked at her grimly. 

"Beel…?" Esther didn't notice how her voice had cracked as she sensed the deadly presence from Beelzebub and his intention to kill her. 

Beelzebub stared at her blankly for a good seven minutes and that time felt long and short at the same time to Esther. She felt a bubbling feeling swollen on her throat, feeling like a prey being stared by a predator.

"It's you," Beelzebub said after a long time of staring at her. "How's the castle?"

Esther forgot that she had came here to warn Beelzebub of the castle's current condition, finding herself washed by a cold sensation. "The castle… yeah." Esther closed and opened her mouth to find a better word to say, then coming to state, "The castle is safe. The person earlier wasn't Michael but Lucifer who had disguised himself as him."

"I knew it. He smelled different. Yet you pushed me away," Beelzebub stated his last sentence with a deep bitterness.

Esther sighed, "That wasn't my intention and you know it as well. I was trying to protect you."

"Protect me?" Beelzebub's eyes narrowed when all of a sudden a loud slap rang inside the cave. Esther flinched when she saw Beelzebub had slapped his own cheeks. A small whisper left his lips before he looked back at her. 

"You should know your limit, Esther. Without me you will only be at more risk of danger and death," Beelzebub stressed his words, "You need me."

"Need you?" Esther repeated his words, finding his eyes widening.

He touched his head and Esther carefully took a step forward, "Are you alright. You are looking very—"

Beelzebub retracted his steps and raised his hand over her. "No. Don't come closer to me. You are really… a trouble," said Beelzebub with his eyes narrowing, appearing to be angry at her which left Esther confused.

In the end, they had gone back to the castle and defeated both Apollyon and Ernest. It should be a great victory to be celebrated by them, however, Esther was busy finding Beelzebub who had disappeared right after the war.

Esther found Beelzebub as he was about to leave. She had spotted him on the way toward the garden, noticing him who was standing on the entrance of the garden and sped up to chase after him when she noticed how his bat wings were spread up. 

"Hey! Wait!" She chased after him, seeing Beelzebub who was ready to fly to stop when noticing her.

Beelzebub seemed to be frowning, trying to control his anger to Esther's eyes which pained her heart for some reason.

"What is it?" Beelzebub's tone was cold to her. It caused Esther to become confused how their relationship could turn for the worse. 

"I haven't thanked you for saving me," Esther started her words with a smile, "I know we started at the wrong foot and about me pushing you, it was my mistake." 

As she talked, she looked down, somewhat having the need to look at the grasses which color she couldn't tell as darkness envelope the entire land and with the lack of light, she was grateful as it had hid the expression that colored her face. But she didn't know that by looking down and with the darkness, she too, didn't know how Beelzebub kept on frowning. One of his hand covered the side of his head as if he was trying to hold his head together so his skull wouldn't blow up to pieces.

Upon Esther's voice, his eyes turned dizzy and it was difficult for him to focus. Yet all of a sudden; his expression which once was filled with pain cleared out as if a storm had passed. His eyes turned brighter and livelier, but at the same time holding a hint of more cruelty. 

He raised his hand again and tilted his head, "You pushed me to save me, why do you have to apologize?"

But you were bitter about it, answered Esther in her mind, deciding to keep her thoughts to herself.

Esther didn't noticed it at first how a smile had played slowly on Beelzebub's full lips. His eyes which were at the same hue of blood squint as he pulled the corner of his lips into a wider smile.

"Anyway, Esther," Beelzebub showed her a gentle smile, "I had been thinking about something which only I know you can answer and no one else."

"Only me?" What kind of question will it be? Surely when it comes about knowledge she wasn't the ocean of knowledge to be consulted for an answer. 

"Feel this," Beelzebub said as he slipped his hand to Esther's hand. She was confused at first, wondering what she need to feel when the man in front of her had placed his hand over his chest. 

Startled, Esther pulled her hand away only for Beelzebub to press her five fingers deeper to where his heart was positioned at. 

"Can you feel it?" Beelzebub asked her with his playful eyes. She didn't noticed before, but now in the position where their lips could brush if she had stand on the tip of her toes, Esther didn't miss the sudden change in Beelzebub. She noticed his clever eyes turning slyer and though his hand was warm, his eyes were chilling.

"Are you sick?" That was the logical conclusion Esther could come up with.

"Do I look like an ill patient? I am not saying about my heart changes, Esther. But feel it. My heartbeat and how it specially beat faster in a different tempo when I am near you," when Beel took one step forward, Esther's heartbeat raced inside her chest and she felt the same happening on Beel's heart which only affected her to be more nervous.

"It's a funny joke," Esther forced a chuckle to lessen the tension of the room. "You should attempt saying those words to the ladies. I am certain they would fancy you in a blink of an eye simply of those words."

"Was my question not clear enough to you, Esther? There are many ladies on the city. Those who are extremely beautiful, extremely powerful, and extremely clever. But my heart choose you."