You had currently broken up with your boyfriend due to him cheating on you, and it left your heart aching since he was the 'love' of your life, at least that's what you thought, but you desperately wanted to relieve yourself, and get rid of this stinging pain in your heart... and to get a even better boyfriend then your old one, since at least a robot could stay loyal... so you went to 'Build A Boyfriend' and customized your robot boyfriend. now your makeshift boyfriend, whom you named Seo Joon had been shipped to your home a few months ago, and he finally arrived, you heard the mail man ring your door bell, and that's when you noticed he was here! So you quickly jumped out of your bed and sprinted to the door.