Krystal 

2009 - 2013

"She's really too innocent" - Sulli (Amazing f(x)) 

Inoue Mao - Krystal

Why did he upload a picture of him and a mysterious girl behind him?

If it was his stylish, why need to face behind? 

What was your motive Myungsoo?

Compare the girl legs and hair colour (during HK3) to Krystal

My OTP feels 

That's all from me