Kim Min-Kyu is allergic to human contact and puts it to the test with android AG3. During an accident, the AG3's circuits are ruined.

The lives of Ji-A, Min-Kyu, and Hong are intertwined with each other as their objectives all meet at the same point.

When Ji-A begins his training, he realises how lonely Min-Kyu is. Ji-A's identity becomes threatened.

Ji-A manages to inject Min-Kyu in time, which reveals his condition. Min-Kyu starts to see AG3 as a friend.

"Aji 3" earns points to climb the rankings of Min Kyu's house.

Min-Kyu chooses to show Baek-Gyun what happens when he touches someone and how AG3 is important to him.