This is going to be one entertaining 'Infinity Challenge' episode. The upcoming guests for the popular show are ZE:A's Siwan and actor Lee Sung Min! As you might know, the two starred in the popular and critically acclaimed drama 'Misaeng' as well as the hit film 'The Attorney'.

The reason the two are coming on the show, is to be Kwanghee's acting coaches! This coming week's complaint topic is from a viewer who asked, 'Please fix Kwanghee's foot acting'. And that's exactly what 'Infinity Challenge' will do, with the help of fellow ZE:A member Siwan and Lee Sung Min. No one can deny that the two are good at acting.

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The episode airs on December 19. That's the only way you're going to see Siwan and Lee Sung Min help improve Kwanghee's acting!