Are You Human?

After losing her son to her father-in-law, Oh Lauran creates an AI robot that looks the same as him.

Both Nam Sin and Namsin, the robot, are shocked to see each other at the Czech Republic.

Sin gets hit by a truck and gets seriously injured. Young Hoon trains Namsin so he can pretend to be Sin.

Namsin finishes the presentation well, but So Bong interrupts it, revealing everything that Sin did to her.

Namsin gets injured while saving people. Laura saves him just in time before people find out about him.

So Bong starts working as Namsin's bodyguard. She installs hidden cameras in Sin's room under Mr. Seo's order.

So Bong sees the actual Nam Sin and gets shocked. She secretly enters the ward Sin is in to get evidence.

The test driving of PK's driverless car goes wrong, and Namsin stops the car, revealing his injured back to So Bong.

So Bong and Sin's car gets into an accident, and So Bong finds out that Sin is actually a robot.

So Bong is still in shock about the identity of Namsin Ⅲ, but he acts so friendly around her.

Sin's sudden kiss with So Bong puts off the marriage talk for now. Ye Na barges into Sin's house with luggage.

While trying to persuade Sin, Jong Gil suddenly throws a fit, calling Sin a different name.

Namsin tells Chairman Nam that he knows he doesn't have dementia. Meanwhile, Jong Gil cooks up a scheme.

When Ye Na learns that Namsin is fake, she starts mistreating him, and So Bong can't stand watching it.

Chairman Nam tries to persuade Laura to work with him. Meanwhile, Namsin starts to show unexpected behavior.

Laura and Young Hoon only care about Nam Sin, but So Bong thinks that is unfair to Namsin. Jong Gil starts to suspect So Bong.

Namsin starts to think and act on his own after So Bong leaves him. Laura becomes worried that Namsin’s identity as a robot might get revealed.

Namsin Ⅲ begins to think about So Bong more and becomes closer to her while Laura's grief grows.

Namsin Ⅲ abandons his wedding to save So Bong, and Laura can't handle his changed demeanor.

Seo Jong Gil suspects Nam Sin of being something other than his true self and is driven mad.

Laura's elation at Nam Sin's signs of recovery is overcome with anxiety as Namsin Ⅲ moves on his accord.

So Bong is upset to see Namsin continuing to listen to Laura without knowing that he has a kill switch installed in himself.

So Bong confesses her love at the presentation, but unexpected events continue to occur.

After hearing So Bong’s love confession, Namsin tries harder to understand and feel emotions.

Nam Shin becomes angry as he gets rejected by So Bong and realizes how Laura really feels about Namsin.