"Potato Star" Yeo Jin Gu disappeared into thin air. The sweet date on the rainy day was his last. Ha Yeon Su waited for a while but Yeo Jin Gu had left without saying goodbye. Ha Yeon Su cried and ate sam gyup sal.
On tvN "Potato Star 2013QR3" broadcast on October 28th, the day to day lifestyle of Na Jin Ah (played by Ha Yeon Su) was portrayed as Hong Hae Sung (played by Yeo Jin Gu) leaves. Na Jin Ah had previously ignored Hong Hae Sung but she waited for him to come home as she went to and from his place.
Before her house was demolished, Na Jin Ah called Hong Hae Sung to eat the sam gyup sal that they had planned. However, Hong Hae Sung didn't come. Na Jin Ah then realized that she didn't even know his cell phone number.
Gil Sun Ja (played by Oh Young Shil) said, "You didn't even kno Hae Sung's number. What were you doing this whole time? You were stuck at the hip" and annoyed her. Na Jin Ah said, "He was always home so I didn't have a reason to ask" and looked disappointed.
One morning after Hong Hae Sung disappeared, Na Jin Ah installs the application that she had developed. It's an application that would blink if the two people were within a 1km distance. Na Jin Ah later checked the application but the light didn't blink.
Gil Sun Na and Na Jin Ah left before the house was demolished and on the rock that they sat, she wrote, "I don't know your name or your number. Call me, you bastard." Viewers were touched as they hoped that Hong Hae Sung and Na Jin Ah would reunite.
