Actors Lim Yoona and Lee Jong-Suk attended the production presentation of MBC's new Friday-Saturday drama 'Big Mouth' earlier this morning.

The two showed good chemistry arm in arm, waving and sending out hearts for the cameras.

'Big Mouth' tells the story of a convicted lawyer who accidentally gets involved in a murder case. He becomes a 'Big Mouth' to uncover the true face of the privileged class. Keep in tune for the premier broadcast on July 29th at 21:50 (KST).