Lee Sang Yoon,�Shin Sung Rok, and�Kim So Eun�promised to fulfill their commitments if their upcoming�tvN�Mon-Tues drama 'Liar Game' surpasses the 5% viewer rating mark!

SEE ALSO: 'Liar Game' introduces the game and characters in additional teasers

Lee Sang Yoon: "The entire cast of the drama 'Liar Game' will participate in volunteer service to deliver briquettes for winter."

Kim So Eun: "I will do a free hug in Myeongdong... PS With all of the actors."

Shin Sung Rok: "I will do a 'bubibubi' [close physical contact] dance with Lee Sang Yoon in Myeongdong."

Tune into 'Liar Game' when it premieres�on October 20 at 11PM KST, so they could fulfill their promises!