The detective that day needed another cup of coffee to handle another interrogation. 

 JungSe : Yesung wasn’t totally honest with me

 Yesung : I answered all your questions sincerely 

 JungSe : You didn’t say you had a relationship with Kim Ryeowook

 Yesung : This matter was not part of your questions 

 JungSe : But the reason your relationship ended was Donghae

 Yesung : Who told you that? (the inspector was speaking) Don’t tell me Sungmin opened his mouth?

 JungSe : Mr Lee Sungmin?

 Yesung : Yes! I should never have said anything!

 JungSe : I’m sorry?

 Yesung : Of course it must have been him (bowed his head in anger)

 JungSe : Do you want to tell me why you think Lee Sungmin said that Donghae’s motive was the end of your relationship?

 Flashback

 Yesung was in the library that worked to arrange the books that were left by customers in the cart of "mess", was so focused on that task to try to forget the pain that had inside his heart to have ended with Ryeowook, where he had devoted three years to ending up like that. 

 Because of jealousy that Ryeowook felt from one of his closest friends!

 His head had a thousand thoughts on that subject that was frightened to hear a noise of throat of the man who was next to him. 

 He made a funny face by better observing the person who was there in his workplace. Because as much as he was part of the same group of friends, there were few times he met alone with the man standing in front of him. 

Yesung : Where are you?

 Sungmin : Hyun, can we talk?

 Yesung : Is something serious happening?

 Sungmin : It happened!

 Yesung : What? (put all your attention on the younger) Sungmin, what happened so bad?

 Sungmin : I caught my friend crying for you, due to a broken heart (said furious and low for being in a quiet place)

 Yesung : Ryeowook told you?

 Sungmin : Yes, she told me! And I can’t believe you broke up with Donghae

 Yesung : It wasn’t me who ended up in the first place but your friend 

 Sungmin : Still! You couldn’t have fought anymore to be with Ryeowook 

 Yesung : It was Ryeowook’s will to separate from me 

 Sungmin : But you didn’t go to the fight! (the eldest aimed it) Stop with this calm and fight for Ryeowook if you love him

 Yesung : The Sungmin...

 Sungmin : Or don’t you love him anymore?

 Yesung : Of course I love him

 Sungmin : What’s up?!

 Yesung : Ryeo doesn’t notice when...

 Sungmin : When we decided to be more attentive to the relationship o