In 2016, Kim Seon-Ho told the story of his past relationship on SBS Power FM's radio show, Park Sunyoung's Cine Town. When he was serving in the military, his then-girlfriend of 3 years texted him to break up and even blocked his number. The actor recalled how he was so desperate, he went over to her house to talk to her and knelt down in front of her, which dragged on for 3 hours.
[commenting on his character's love confession in Start-Up and on the ending] In the drama, Ji Pyeong confessed his feelings while eating noodles. But I thought to myself that if it had been me, I would probably have confessed a little earlier on than that. It would have been nice if it had worked out, but I actually thought it was a good thing that Ji Pyeong didn't get together with Dal Mi. I've said this before, but I think the right person for him is someone else out there. I don't think Ji Pyeong and Dal Mi were meant to be, and I think Do San and Dal Mi were. Maybe that's why I don't feel disappointed that they didn't get together. I actually liked that Ji Pyeong mustered the courage to let Do San know what direction Dal Mi's heart was facing-and that he stayed true to himself by deciding to remain in the role of helper up until the very end.
