Oh Min-suk suspected Yoona.
On the latest episode of the MBC drama "The King Loves", Song In (Oh Min-suk) started to suspect Eun San (Yoona) who was released with the help of the Prince. Eun San wrote a letter to Eun Yeong-Baek (Lee Ki-young) for help when Wang Rin (Hong Jong-hyun) was arrested because of her.
However, Song In intercepted the letter.
He read the letter and said, "The letter looks like a daughter is asking her daddy for something" and started suspecting Eun-san.