Baby Daddy ; Super Junior

Ryeowook's sister is pregnant and she confirmed that the father is one of his dear Super Junior members. However, she won't tell him who it is, afraid that he'd kill him. So, he takes matters into his own hands as he investigates her life, his life and the lives of everyone around him.

His sister is expecting, and he has to find the father before she's due.

But what he didn't expect, was that he'd find his true love closer than he'd actually thought.