In the penultimate week of "May I Help You," gruesome things and hidden truths begin to unfold one by one.

Girl's Day Hyeri also discovers the truth about the true identity of the culprit behind Lee Jun Young's brother's cold-blooded murder.

Keep on reading to know more about what happened in the new episodes of "May I Help You"!

'May I Help You' Episode 13: Baek Dong Ju and Butler Kim Meets The Real Killer

In episode 13 of "May I Help You," Butler Kim (Lee Jun Young) learns that the man who killed his younger brother is Seo Hae Ahn's (Song Deok Ho) brother.

In addition to that, Butler Kim continues to mourn for his late brother, whom he wasn't able to save despite being one of South Korea's renowned doctors.

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Written by Elijah Mully.