Cho-rim asked officer Choi about the internet murder case from 10 years ago but he said not to worry and delete the text. She was so interested to hear about the case and she thinks she could help him to catch the culprit. She started to question him that who caught the hair salon robber? she said she could catch the culprit just with her sense. She persuades him to become her comic talk partner and she would become his investigation partner. She said then it would be beneficial for both.
A flight lands, a person named Kang Jae-hee got a call from the parents of Ma-ri saying that there was no news about her, still haven't heard anything from her. They were worried and asked where was he. He said he just arrived at the airport and he will call back.
Officer Choi asked Cho-rim that how did she know where the hair salon robber was hiding? and also asked her how did you know that I ate black bean noodles, he said it's impossible to guess it right just with her sense. He asked her if she had some kind of secret right? She asked him don't you think you are too close. He was shy and sat on the chair. He said if we are going to be partners, shouldn't we trust each other?
She asked him we are going to be partners for sure, right? She looks around whether someone is watching and goes near his ears and whispers that she knew it by smell. He asks surprisingly asked SMELL? She said yes the hair salon robber had a strong perm solution on his hand and she also said he had four different food smell on his face and clothes. He asked her that you have a keen sense of smell, right? she said she is better than the police canine. He was suspicious so he said he would leave and hide and asks her to leave after five minutes and find him. She said we don't have to that kind of useless test. He said to leave after five minutes. She was watching him and he stepped on caramel macchiato again.
She left the cafe after five minutes, followed the caramel macchiato smell, and walks on the street. She notices that it was circling the tree and takes a u-turn and circles the tree again. There a lady took her dog for walking and the dog didn't come out of a particular place near a bush. He was watching from the top of the building and said that she can smell like the dog over there. He was shocked and said that she's following the path he walked without making mistakes and asked how can she do that? Suddenly stopped near an apartment which he was hiding and said that she saw him and asked her to come down. From the top, he said she was really like a dog. She starred at him and he said sorry.
She asked him can he trust her now as his partner? He asked but you weren't sniffing like a dog? She asks you still can't believe me? He replied of course. She said it's not her nose but her eyes. He said let's stop it. She asked did he get it from a Chinese restaurant. The mint, that's in his pocket. He took it out and was shocked and she asked him to take it and follow her. She will have you confirm if it's my eyes or her nose.
They went to a shop and asked for five cups and asked him to hid the mint in one cup. She covered her nose and was facing the other side. He hid the mint in cup 2 and her to find out. She observed the five cups and said the scent was coming from 2nd cup. He opened it and it was correct. She went out and stood and he hid it once again in the 5th cup. She said it was the 5th cup from outside. He thought it's impossible to smell from outside with her nose plugged. Can she see smell with her eyes? He again shuffles the cups and asks her to turn around. She couldn't see any smells in any of the cups and was confused. She said it's in his mouth and it was right. Then he confirms that she can see smell.