Viewers who caught the latest episode of "High School King of Manners" witnessed a scene in which Seo In Guk was exercising so enthusiastically that he injured himself. His character falls so hard during training camp that he has to wear a sling. And that leads his secretary, played by Lee Ha Na, to think he was injured in an earthquake in Japan.

But what may have puzzled viewers is the fact that he had an ace bandage wrapped around his shoulder before he even fell.

He earned that ace bandage while filming another scene in which his character played ice hockey.

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