Found you || Are you human too? (смешанная)

Main ship: Nam Shin lll / Ji Young Hoon
Past relation: Original Nam Shin/ Ji Young ( which later in upcoming chapters is one-sided. Because Ji young might fall in love with Nam Shin 3.
 
Ji Young Knew how his feelings were towards Nam Shin, but Shin being the only heir of the PK Ground, could never afford his image to be destroyed. He did not realize how much he cared for him till the moment he lost him. To protect his place Oh Ro Ra requested Nam Shin 3 to go to Seoul with Ji Young, till the real Nam Shin woke up. For the initial few weeks Ji Young was very uncomfortable, deep down he felt that he was replacing the real shin with a fake one.
Being drunk one day, and breaking down as he could not hold his emotions He approached Nam Shin 3 who told him he would be by his side whenever he needed him.
But was he the one Ji Young needed? or was he just a replacement?
Nam Shin 3 being a self-learning Robot, had never experienced feeling and emotions. But he found himself conflicted when Human Nam Shin woke up.
Was it Jealousy?