Hae Jo sets out to find his sperm donor, the biological father he never knew. He crashes Jo Jae Mi's wedding and drags her along.

Hae Jo recounts his first meeting with Jae-mi. While a huge fight breaks out at the sundae shop, Eo Heung and Wang Chil Sung's gang close in.

Jae Mi makes a tough choice between Hae Jo and her devoted fiancé. Soon they head down to Busan, while a mysterious figure arrives to bail Heung out.