When the car brought Jin to the alley, a guy in black pajamas walking back and forth in front of the house appeared in their view. Jin sighed, but his lips were still curled up by a small margin. Kim Namjoon noticed Jin's expression with a smile on the corner of his eye, pretending to ask aimlessly.

-"Do young boys nowadays like waiting for a girlfriend in pajamas?

Kim Seokjin pulled back a smile and glanced at the retorted detective.

-"How are you so sure?"

While the two people in the car were eyeing each other, Jungkook also noticed Jin sitting inside. The boy quickly waved his hand and ran to the door where he was sitting. Jin withdrew his joking gaze and promptly opened the car door and got out. As soon as his feet touched the ground, he was wrapped in warm arms along with the boy's whining song. Looking at the two of them embracing each other, for some reason, a wave of light anger arose in his heart, and he just wanted to separate the other two. Thinking so, the inspector opened the car door, walked up to them, cleared his throat to get someone's attention, and coldly said

-"Seokjin, shouldn't you introduce?"

Seokjin pouted at the other's cold face, slowly inching out of Jungkook's embrace and quickly acting as a bridge between the two.

-"This is Director Park's new personal assistant, Kim Namjoon. This is Jeon Jungkook at the front desk. Just arrived not too long ago, and he is staying with me."

Kim Namjoon frowned when he heard that they were together while Jungkook was busy scanning the detective from top to bottom. After a scan, the boy smirked.

-"Wow...well...How did that arrogant Park find an assistant who is so... delicious?"

Hearing the mockery in Jungkook's words and the unfriendly look in Namjoon's eyes, Jin quickly nudged the boy's hand and stepped in to maintain peace.

-"Ha..ha..ha..He is complimenting you, don't take the childish words to heart."

Kim Namjoon coldly glanced at Jungkook and then looked at Seokjin and replied

-"A child can't become a good man if he is not properly educated from a young age."

Jungkook gritted his teeth in displeasure, and Seokjin could only look at Kim Namjoon's expressionless face in a speechless state. The introduction between the two of them ended abruptly right after detective Kim's provocative statement. When Seokjin and Jungkook disappeared behind the apartment door, Kim Namjoon quickly pulled out his phone to call his weird cousin.

-"Find me the information of a person named Jeon Jungkook, a receptionist at L hotel."

-"I've worked for free so many times." - A sleepy grumble echoed from the phone.

-"Calculate the debt. I'll pay it off later. Price surely will satisfy you"- Kim Namjoon smiled lightly, his eyes following the flickering stair lights of the opposite building.

-"Huh. I hope so."

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.

Meanwhile, at a villa on the city's outskirts, a woman in a wheelchair angrily threw all stuff in her view to the ground. The sound of broken glass was cold in the middle of the messy room. The man in the red suit leaned against the door calmly as if the mess right there didn't exist.

-"Calm down, sis. Everything can still be fixed"

-"Why did that damn detective come out of nowhere and ruin the whole plan we worked on. Wasn't that video handled carefully?" - Park Shinhye fiercely questioned Kim Taehyung.

-"I did give it to Hoseok to handle the CCTV. I don't know how the detective managed to restore it. Also, when he restored the video, why did he cut the part that included Park Jimin? Do you think he is on Park Jimin's side?" - Kim Taehyung gently approached and handed his handkerchief to Miss Park.

-"Very likely. I'll ask Hoseok to find out more. His arrival at L hotel will cause a lot of trouble for us later. Remember to work a little more discreetly. What needs to be cleaned up, do it quickly"- Park Shinhye, after venting her anger, directly wiped the blood that was leaking from the glass cut while instructing Kim Taehyung.

-"I know. But why did you come to the party today? I was quite surprised. You showed up a bit early"- Kim Taehyung walked behind and slowly pushed the wheelchair out of the messy room.

-"It is indeed a bit early. I was sure there must have been something fun to watch today"- Park Shinhye clutched the red-colored accent scarf, said in a low voice-"Park Jimin is too lucky."

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Back to Kim Seokjin's cozy little house with his flatmate Jungkook. After summarizing tonight's events in a few short, concise and incomplete sentences, Kim Seokjin turned back to the room to rearrange the sequence of events that happened today and the day of the murder. He had inadvertently overlooked or neglected a critical detail due to too much pressure from other information.

That day, when he came down from the 12th floor, he caught sight of the former GM, Lee Sohan, scolding supervisor Hwang quite harshly. Usually, the former GM Lee would go down to the reception area to check or welcome VIP guests. But there was no arrival VIP on that night. Besides, it was pretty late, supervisor Hwang should have finished her shift, but somehow both of them were still there. When Mr. Lee saw Seokjin coming, he asked him to prepare a car to take a guest to the airport because their flight time was changed. Supervisor Hwang updated late, so she hadn't arranged a driver beforehand. Kim Seokjin obeyed to prepare the car, but before leaving, he also told Hwang to monitor the situation in room 1202. At that time, her mood was nasty because she was scolded by the manager, so he didn't know if she noticed what he said or not. Before the car departed, GM Lee also went to the car to see off the passenger. Not only that, but he also told Jin he should go home to rest early and return the car tomorrow after dropping off the guest. Of course, Jin happily accepted the GM's advice and let the story of room 1202 out of his mind. As a result, the next afternoon, he was called to the human resources department and taken away by the police in a hazy state.

Perhaps the two people Lee and Hwang, will be the key to unlocking this puzzle.