Group Super Junior's Eunhyuk confessed his awkward relationship with SNSD's Seohyun.

Eunhyuk wrote on his twitter "last night's katalk! Seohyun: "what are you doing tomorrow night?." me: "what's up?," Seohyun: "I'm planning a birthday party with my favorite people!" me: "and why me..." Anyways I went there to celebrate tonight. Unlike what I've expected, I went there first."

Furthermore, he wrote "Us drinking juice...suffocating awkwardness" and uploaded a picture.

In that picture, two people were sitting on a large table, facing each other awkwardly. Seohyun is pouring juice to Eunhyuk and he was receiving it with two hands, very formally.

Following to that, Eunhyuk wrote "After 30 minute Kyuhyun arrived! But still a weird combination. Trying to act outgoing," "Huinim(Heechul) and Sooyoung arrived! It's better now. But where are Seohyun's friends...," "after one hour passed finally Seohyun's REAL friends Jinwoon and Amber showed up! Seohyun, isn't this what you wanted?," "Yoona and Sunny showed up with a cake! It's Super Junior&SNSD&JYP Jinwoon combination. And I headed out. After I got out, I heard Leeteuk and Changmin came by. Anyways, Happy Birthday Seohyun" and broadcasted the party situation with bunch of photos and made people laugh.

In those uploaded photos Super Junior's Eunhyuk, Kyuhyun, Heechul, SNSD's Sooyoung, Yoona, Sunny, f(x)'s Amber, 2AM's Jinwoon were smiling happily next to Seohyun. Especially Seohyun wearing a golden crown as the queen of the party attracted people's attention.

Internet viewers wrote "Those awkward two of them are so cute," "Seohyun Happy Birthday," "Jinwoon must've been lonely," "SM groups all on the stage."