Actor Yoon Kyung-ho took on a vow of silence he had pledged as a ratings promise for the drama "Manager Kim," but he could not stay silent to the end.

Actor Yoon Kyung-ho declares a vow of silence (Instagram). /Courtesy of News1

On the 13th, Yoon Kyung-ho appeared as a guest on SBS PowerFM's "2 O'Clock Escape Cultwo Show" with actors Joo Sang-Wook and Son Naeun and discussed the drama.

On the 25th of last month at the "Manager Kim" production briefing, when asked about a ratings pledge, Yoon Kyung-ho said, "If ratings top 13%, and if my schedule can be adjusted well, I will do a 13-day vow of silence. If not, I will at least do 13 hours."

Accordingly, Yoon Kyung-ho began a vow of silence that day, not speaking for 13 hours from 7 a.m. to 8 p.m.

A stopwatch showing the remaining time until the end of the vow of silence was also installed in the "2 O'Clock Escape Cultwo Show" studio.

Yoon Kyung-ho appeared in the studio wearing a T-shirt that read "I am in a vow of silence." He also held a whiteboard covered with various notes written densely.

Through the whiteboard, he conveyed, "I only have 13 chances to use this. If I get the chance later, I will make sure to say everything I couldn't then."

However, as the broadcast went on, Yoon Kyung-ho eventually broke his silence and began speaking himself. The production team added a penalty of five minutes to the vow of silence each time Yoon Kyung-ho spoke, drawing laughter.

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