Mr. Plankton

Hae Jo, who runs an errand center, accepts No Yang Hui's request to kidnap her on her wedding day. Later, he unexpectedly runs into an old flame. (Source: Netflix)

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. (Source: Netflix)

Hae Jo recounts his first meeting with Jae Mi. While a huge fight breaks out at the sundae shop, Eo Heung and Wang Chil Seong's gang close in. (Source: Netflix)

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. (Source: Netflix)

Hae Jo spends meaningful time with Ko Jae Geun up in the mountains. Back in Seoul, Chil Seong corners Kkari and forces him to track down his old partner. (Source: Netflix)

Heung reflects on his relationship with Jae Mi. After Hae Jo steals a boat to escape Chil Seong, they end up stranded on a deserted island. (Source: Netflix)

Shaken by the island ordeal, Hae Jo slips into a slump his friend Yang Bong Suk can't lift. Meanwhile, Heung does everything to stay by Jae Mi's side. (Source: Netflix)

Afraid of hurting Jae Mi again, Hae Jo tries to push her away. Later, he takes on a new errand and meets a young girl looking for her long-lost brother. (Source: Netflix)

After learning about Hae Jo's severe condition, Jae Mi is determined to help him find his biological father. But when she returns, he’s gone. (Source: Netflix)

Now alone with Heung, Hae Jo reflects on his unfortunate life. After a tense reunion at Kkari's workplace, Hae Jo decides to confront his painful past. (Source: Netflix)