Taeyeon used to date Junsu in 2007. But they broke up when Junsu left the company. In heartbreak, she found comfort from another labelmate, Kangin, who secretly bore feelings for her. But when he suddenly break her heart before going to army. Taeyeon found herself in the arms of Super Junior leader, Leeteuk. Leeteuk were there to pick up the pieces that were shattered by Kangin. As time goes by, they began to grew close. But will the return of Junsu and Kangin cause Leeteuk to back off the path to Taeyeon heart or will he fight with the other two for the Kid Leader love.

"Oppa still loves you. It was my mistake for making you choose. I shouldn't have done that. Please, Taeng, forgive my foolishness."
-Junsu to Taeyeon-

"I hurt you, didn't I? Please forgive me. It doesn't matter if you choose other people. Just forgive me, Taeng."
-Kangin to Taeyeon-

"You're a theif,  Kim Taeyeon! You have steal my heart without me knowing. Stop it! I don't want to be a bad person. Just stop it, please...."
-Leeteuk to Taeyeon-

"You were the first person who I love. And you were the first person who broke my heart. Will you be the first person I will hate? Because you are pushing me to that path. And I don't want to hate you."
-Taeyeon to Junsu-

"Your feelings towards me were never 'couple love' but it was 'sibling love'. You just didn't realise it neither did I. It was partly my fault too. I fall in love too easy. I forgive you."
-Taeyeon to Kangin-

"You left me speechless, Oppa. If I'm a theif then be my accomplice. Let's be Bonnie and Cylde then. We have done bad things, hurt people deeply. So what do you say? Be my Clyde?"
-Taeyeon to Leeteuk-