is Joo Haknyeon
'#JooHaknyeon. He took a picture to show his gratitude. He feels really happy right now, he's currently flying to his practice room'
As you can see there's a post it note near his hands.
He went to the subway to see the advertisement board, and left a post it before he left.
'Thank you<3'
The reason why he chose a pig post it is probably because his family owns a pig farm, I think it's so cute.
and Lee Junwoo
He left a reply to every post it his fans left on the ad board.
The shape of the post it makes it look like stars in the night sky.
'I pass by Samsung Station everyday, it's really fascinating (to see his face on ad board) <3<3<3
Junwoo'
'I sincerely would like to thank you for putting up my picture here 2017.5.30
Junwoo'
He even translated the note a Chinese fan left on the board.
'Junwoo-ya, thank you for existing. You've been working so hard, I'm rooting for you'
Sadly, Junwoo's dream isn't to be in PD101 anymore. But with his personality, I think he can be successful no matter what.
(In the letter he states about how grateful he is towards his fans. That he has never received love as much as he's currently receiving right now. That he feels emotional everytime he reads letters and comments from his fans. He doesn't know how to pay back all of the supports and loves he's been receiving, so in the end he decided to write a letter for his fans. Being in PD101 helps him to learn a lot of thing and get to know a lot of good people, it was an experience that he could never forget in his life. He also states that he will never give up and will keep on running towards his dream'
Kwon Hyunbin
Some of his fans even left flowers on the board.
'To the national producers who always work hard for me, I know it's not easy for you'
'I will debut in order to pay back all of the hard work and effort you put for me. Even if I can't be the best artist in the world, I'll show you how greatest love in this world looks like'
-Kwon Hyunbin'
Both Kwon Hyunbin and his fans are really kind..
All of them are really kind, I hope things will turn out well for them..
And I hope Mnet will stop giving hard time to these kind trainees..
-They're so kind..ㅠㅠ
-It's really sad to see these kind and hard-working trainees become a sacrifice lambs on TVㅠㅠ I wish them all the best..
-Kwon Hyunbin is mine..
-It's such a nice sight to see them leaving a reply to every notes their fans leave on the ad board..
-I hope those people who took the post it notes will have a bad luck for 3 generations..ㅠㅠ
-These three are my favorite trainees..ㅠㅠ
-They're so cool..
-The notes that Kwon Hyunbin left on the board make me feel really emotional right now..
-Junwoo.. You've been working really hardㅠㅠ Let's debut!!ㅠㅠ
-They're all so kind and it's really heart-warming to read this whole post..ㅠㅠ
-Minhyun also went to see his ad board yesterday..ㅠㅠ
-I guess this will be a trend among the trainees now.. Leaving post it notes on their ad boards..
-No, Hyunbin.. I'm not having a hard time because of you..
-Whoa.. I'm choking up on my tears..ㅠㅠ
-Hyunbin-ah, I will always support you.. Supporting you doesn't make me feel tired or anything, so don't worry!
-I love you, Hyunbin-ah.. I promise you will be able to debut..
-Junwoo-ya.. I miss youㅠㅠㅠ
-Why are they so lovely..ㅠㅠㅠ
-Haknyeon is so cute..ㅠㅠㅠ
-Junwoo is clearly an angel..
-They're so kind.. I'm not even their fans, but those notes they left for their fans make me feel emotional...ㅠㅠ