Today is Jeon Jungkook's birthday. He was excited for the whole week, looking forward to what his favorite hyung would give him. Taehyung promised to give Jungkook a present he would never forget, since he's already eighteen. But the moment his eyes opened, he doesn't found the most important person in his life beside him on their shared bed.

He went downstairs, not bothering to wash his face nor brush his teeth. He looked everywhere, but neither the other members were there. He only found a cookie in a plastic wrapper with a note posted in it.

"Happy birthday, kookie-yah! Follow what I wrote on this note and you'll receive the best birthday gift ever!" -Taetae hyung

'What's going on in hyung's alien mind now?' Jungkook thought.

He noticed a candy wrapper and picked it up. He recognized Taehyung's messy handwriting and chuckled to himself, for the fact that his hyung was still childish though he's older. He read the note and can't help but burst out laughing. Taehyung really has his ways of making him happy.

'You'll find the first three cookies in the cookie jar. Don't laugh, I'm serious.' -Taetae hyung

He opened the cabinet on the kitchen and there were indeed three cookies. Jin suddenly appeared and gave him a note. Jin patted his shoulder before wishing him a 'Happy birthday,maknae.' and went out of their dorm.

'Go to our room. Wear the clothes on the paper bag. Inside it were the next cookies.' -Taetae hyung

Jungkook did what the note said. He found a white shirt with a glass of milk printed on it and a gold bracelet with his name engraved on it. He immediately put it on and paired it with jeans and snickers. He took the cookies and J-Hope entered his room.

"Kookie, happy birthday! I'll drive you to the park. Suga's waiting for you there."

"Okay. But where's V hyung? He's not there?"

"V has to prepare his surprise for you. Don't worry, I know you'll love it. Let's go maknae, time's running."

Jungkook took the cookies and notes with him. J-Hope drove to the park near their dorm and dropped Jungkook to where Suga is. Suga waved at their maknae and motioned him to come closer. He handed Jungkook three cookies and the note.

'The shirt looks perfect on you, kookie yah. Are you excited to see your gift now? Not yet maknae, go to our favorite ice cream parlor first.' -Taetae hyung

"V hyung sees me? Suga hyung, where is he?"

"It's a secret, maknae. Go to your hang out place now. Rap Mon's waiting for you there."

Jungkook ran as fast as he can to the ice cream parlor he and Taehyung always hang out whenever they have free time. Rap Mon is sitting on the corner with his ear phones on. Jungkook tapped the leader's shoulder to get his attention.

"Yo maknae! Here's the cookies. Enjoy your day with V. Happy birthday!"

He read the note while catching his breath. His eyes focused on the clue written on it.

'You wanna know where I am? I'm in a place where all you see are locks and keys were nowhere to be seen. Hurry, kookie yah. I'm waiting.'