I absolutely loved this offbeat love story between human and machine. I find the Premise of a Robot developing Human emotions very intriguing as the Robot also is a "better" person than the human version that he was supposed to portray. Seo Kang Joon managed to elicit entirely different feelings by portraying two characters so effortlessly. Kang So Bong as a character initially irritated me but she redeemed herself when she finally made the right choice by being less selfish, and help Nam Shin Robot to grow as his own entity. The other secondary characters, whether they are villains or not, are well-rounded that they have their own distinct personalities and characters.