Yoo Jae-Suk has come under fire for his tacky Grim skills. Actors Yoo Seung-ho, Kim Dong-hui and Yoo Soo-bin, who returned to the Wave Original 'Deal', appeared as guests on the SBS entertainment program Running Man' broadcast on October 8th. On the day of the broadcast, the signature relay Grim mission of Running Man' was held. Previously, the members showed off their ventriloquism every time they performed the Grim mission, and they showed amazing unity with all kinds of tricks. This time, an upgraded drawing contest was held by combining character quizzes and Grim. Yoo Jae-Suk, who showed a unique style every time a Grim-related mission was given, bought the members' cause with difficult skills on this day. Afterwards, it was revealed that Yoo Jae-Suk's Grim identity was Son Heung-min wearing a mask, and the members were absurd, saying, "Where is Son Heung-min?" Since then, Yoo Jae-Suk has been criticized by members for his "Grim" Grim skills, and his opponent Yoo Seung-ho has been relieved that he is "too bad".