Our Happy Days — Season 1

Eun Ae, struggling with her AI project, finally finds hope as she secures a major investment offer.

Terminally ill Kang Su summons Gyeol to Korea while Ji Hun confesses his love to Eun Ae after a secret deal.

Eun Ae is shocked by the blocked server and Kang Su's family is unsettled by Gyeol's sudden return.

Gyeol mistakes Eun Ae for a pickpocket, and Kang Su prepares a major announcement for his family.

Kang Su declares a succession race for Kangsu Group, and Eun Ae visits the office to reclaim her company.

Gyeol starts working at Kangsu Construction to compete with Min Ho and Eun Ae begins a protest to reclaim Joy.

Eun Ae finds her father working as a cleaner at Kangsu Construction and Gyeol starts working as the TF leader.

Eun Ae receives a notice from Kangsu Construction and seeks help to reclaim Joy after her failed negotiation.

Eun Hyeong faces a crisis, and Eun Ae helps Yeong Hwa, then sneaks into Kangsu Construction to reclaim Joy.

Eun Ae is detained for sneaking into Kangsu, and Seong Jun tries to settle the matter without Yeon Ja knowing.

Gyeol offers Eun Ae an internship at Kangsu, and Yeon Ja begins to grow suspicious of Seong Jun's behavior.

Eun Ae and Seong Jun confess the truth to Yeon Ja, and Eun Ae starts her first day at Kangsu as an intern.

Eun Ae demands her share of the money from Ji Hun, and Seung Wu carries out his revenge against Eun Nim.

Yeon Ja is upset over Eun Hyeong's unemployment and Eun Ae is flustered when she learns about the competition.

Yeon Ja gets into a nerve war with Su Jeong at Kangsu, and Eun Ae learns about Gyeol's career as an architect.

Eun Ae sneakily views photos on Gyeol's computer, and Eun Hyeong shocks Ji Seon by skipping his job interview.

Gyeol takes a drunk Eun Ae home, and Seung Ri feels jealous while Seung Wu gets a new collaboration offer.

Su Jeong gets caught searching Yeong Hwa's room, and Ji Seon asks Yeon Ja for money to help Eun Hyeong.

Eun Ae finds Gyeol playing cards at a senior center, and Min Ho takes a drunk Seung Ri home after dinner.

Eun Ae has a conflict with Yeon Ja over her money, and Gyeol makes a photo folder of Eun Ae on his computer.

Ji Seon sends the money to Eun Hyeong, and Gyeol holds his first meeting for the retirement community project.

Yeon Ja recalls the past after Eun Ae's outburst, and Kang Su takes a trip with Yeong Hwa to see flowers.

Gyeol rushes to the hospital upon hearing that Kang Su has collapsed, and Seung Ri grows wary of Eun Ae.

Seung Ri changes her attitude toward Gyeol, and Dae Chi overhears the password to Kang Su's safe.

Dae Chi attempts to open Kang Su's safe, and Eun Ae plans to meet Eun Nim at Kangsu Construction.

Yeon Ja and Yeong Hwa comfort each other at the hospital while Dae Chi and Su Jeong sneak into Kang Su's room.

Seung Ri is shocked to see Gyeol and Eun Ae together, and Min Ho encourages her to win the competition.

Seung Ri warns Eun Ae about rumors at work, and Yeon Ja tells her family she will focus on her own life now.

Eun Ae shares her sincere feelings with Seung Ri, and Seong Jun accepts Dae Chi's job offer.

Yeon Ja is devastated after seeing Seong Jun at Kangsu Construction, and Gyeol visits Eun Ae's neighborhood.

Yeon Ja buries herself in housework as Eun Nim watches with concern. A busy Eun Ae gets a call about Yeon Ja.

Kang Su receives an age-progressed image of Yeon Sun, and Yeon Ja meets Ji Seon to offer unexpected advice.

The competition begins with contrasting concepts, and Ji Seon talks to Seong Jun and the family about Yeon Ja.

Yeon Ja wails as Seong Jun remains unconscious, and Min Ho finds Gyeol's card at Seung Ri's house.

Gyeol goes to look for Eun Ae and finds her at the playground. He finds himself intrigued by her lucky charm.

Gyeol visits the columbarium on his father's memorial day, and Eun Ae hesitates to wish him a happy birthday.

Gyeol realizes his feelings for Eun Ae after his birthday, and Seung Ri and Min Ho find his cake the next day.

Gyeol decides to move out and looks for a new place. Meanwhile, Min Ho confesses his feelings to Seung Ri.

Eun Ae's family discovers that Gyeol is their new tenant, and Eun Ae urges him to find another room.

Gyeol and Eun Ae commute together. Min Ho focuses on work, and Seung Ri struggles with Gyeol's confession.

Yeon Ja reunites with Yeong Hwa at Dae Chi's gathering. Gyeol and Eun Ae spend time bickering at home.

Yeon Ja worries about Seong Jun after the gathering. Gyeol and Eun Ae enjoy a lovely date in the neighborhood.

Yeong Hwa goes to the police station to meet her long-lost daughter, and Su Jeong anxiously waits at home.

Seong Jun suspects that Gyeol and Eun Ae may be more than just colleagues. Yeong Hwa weeps for her lost child.

Eun Ae and Gyeol encounter Min Ho and Seung Ri while commuting. Ji Seon tells Eun Hyeong her decision.

Min Ho decides to propose to Seung Ri and meets Gwon Sik. Gyeol convinces Eun Ae to go home together.

Eun Ae gets startled after walking into Gyeol's room. Seung Ri asks Min Ho about Gyeol's housing arrangement.

Seung Ri asks Eun Ae to meet secretly. Eun Ae has no choice but to lie to Gyeol about having plans after work.

Eun Hyeong moves into Seong Jun's house. Seung Ri confirms that Gyeol and Eun Ae are living together.

Gyeol offers to help Eun Ae with her work. Su Jeong finds information on Yeong Hwa's lost daughter.

Su Jeong is shocked to find a necklace that matches Yeong Hwa's at Yeon Ja's house. Min Ho plans his proposal.

Eun Ae confesses her love to Gyeol, and Dae Chi and Su Jeong plot to open the safe using Yeon Ja's birthday.

Min Ho seeks Gwon Sik's help to stop Seung Ri. Gyeol and Eun Ae stumble across Yeon Ja's hidden past.

Min Ho's proposal to Seung Ri shocks Dae Chi and Su Jeong. Meanwhile, Eun Ae and Gyeol go on a business trip.

Su Jeong's hair-pulling brawl causes chaos, and Gyeol and Eun Ae's matching shirts stir up the office.

Eun Ae and Gyeol officially start dating. Meanwhile, Dae Chi and Su Jeong receive a shocking DNA test result.

Eun Ae installs a people-finder app for Yeong Hwa, and Seung Ri heads to Gyeol's room while he is with Eun Ae.

Su Jeong opposes Eun Ae's relationship with Gyeol, and Min Ho arrives late to apologize on her behalf.

Yeon Ja recalls a painful memory after seeing the rice cake, and Gyeol asks Eun Ae to meet in the yard.

Yeon Ja gets angry when Eun Ae asks to see her old necklace. Eun Ae also asks Seung Ri for an apology.

Eun Ae and Gyeol look all over for Yeong Hwa as her whereabouts become unknown, but she is nowhere to be seen.

Seung Ri is shocked to see Gwon Sik being blackmailed. Eun Ae is torn over her relationship with Gyeol.

Eun Ae and Gyeol build deeper trust by sharing secrets. Min Ho sees them together during a walk with Seung Ri.

Yeon Ja gets confused by Yeong Hwa's confession, and Gyeol learns about Seung Ri's plans to study abroad.

Seung Ri investigates Gwon Sik's past, and Gyeol plans to revisit a senior center with Eun Ae.

Eun Ae worries about Gyeol, who hyperventilated in the car, and Seong Jun learns about Gyeol's past.

A shocking video is played during the competition. Meanwhile, Yeon Ja feels resentment toward Yeong Hwa.

Kang Su advises Gyeol to stop hiding his pain. Seung Ri finds herself in danger while chasing Dong Pal.

Yeon Ja reconciles with Yeong Hwa to the family's delight but is saddened to learn that Gyeol was adopted.

Gyeol tells Eun Ae about the living funeral. Gwon Sik worries that Seung Ri may know about his dark past.

Gyeol realizes his nightmares are forgotten memories. Worried, Eun Ae checks his Mind Post Office log.

Kang Su plans to add Yeon Ja to his family registry. Eun Ae makes a dreamcatcher for Gyeol's nightmares.

Gyeol runs into Gwon Sik while investigating his past, and Eun Ae plans a special event to comfort him.

Gwon Sik feels tormented by his past murder conviction, which nearly put Seung Ri in danger.

As Kang Su falls ill on the day of his living funeral, Yeon Ja tries to cancel the event, but he refuses.

Gyeol is thrown into confusion as some of his memories resurface, and Eun Ae feels deeply sorry for him.

Seong Jun asks Gyeol about his past, and Yeon Ja decides not to register for Gyeol and Eun Ae's sake.

Dae Chi provokes Gwon Sik about Gyeol's search, while Eun Ae discovers a news article about the accident.

Dae Chi fights with Gwon Sik and Seung Ri feels a strange familiarity upon hearing Gyeol's father's name.

Seung Ri is shocked to hear the truth in Gwon Sik's study while Min Ho stays by her side through her fever.

Seong Jun takes out an old high school album and gets flustered when Gyeol catches him looking at it.

Eun Ae and Gyeol go to see Gwon Sik after Min Ho leaves and witness a fight between Dae Chi and Seong Jun.

Dae Chi, Seong Jun, and Gwon Sik clash fiercely over uncovering the truth of the accident from 25 years ago.

Dae Chi witnesses Gyeol having a nightmare, and the two end up having a conversation about Su Cheol.

Gwon Sik agonizes over his dilemma concerning Gyeol. Eun Ae and Seong Jun discuss Gyeol's returning memories.

Dae Chi feels anxious about the black box memory card. Gwon Sik and Seong Jun clash over the truth.

Gyeol opens his father's keepsake box with Eun Ae. Seung Ri finds a video on Gwon Sik's laptop.

Unintended chaos unfolds at the wedding, and Gwon Sik hastily steps in to manage the situation.

Gwon Sik asks Seung Ri to leave the past behind, and Eun Ae gets a new clue about the accident.

Seung Ri declares she will live at Kang Su's house, and Gyeol shares a decision with Eun Ae.

Kang Su questions Dae Chi and Gwon Sik. Meanwhile, Gyeol and Eun Ae share their decision to marry.

Eun Ae and Gyeol get a crucial clue. Min Ho suspects that Dae Chi, Gwon Sik and Seong Jun are hiding a secret.

Gyeol feels lost after reading the Prosecutor's Office files, and Min Ho resolves to uncover the secret.

Gwon Sik kneels before Gyeol and talks to him about his father's accident, making Gyeol fly into a rage.

Seong Jun and Eun Ae repair the walkie-talkie, and Gyeol recalls a clue about the real culprit.

Gyeol is shocked to learn who saved him. Meanwhile, Seong Jun gives Gwon Sik an ultimatum to tell the truth.

Gyeol is deeply shocked after overhearing a conversation, prompting Eun Ae to decide to tell him everything.

Gyeol coldly pushes Eun Ae away. Meanwhile, Jeong Ran is shocked to learn about Gwon Sik's past.

Gyeol decides to seek revenge on Dae Chi, while Dae Chi takes action to destroy the evidence.

Gyeol pushes Eun Ae away. Later, he overhears a conversation between Kang Su and Gwon Sik, leaving him uneasy.

Gyeol learns about Kang Su's actions. Meanwhile, Eun Ae strengthens her resolve to stay by Gyeol's side.

A secret conversation shocks Min Ho to his core. Gyeol heads to the orphanage to uncover the truth.

Gyeol questions Yong Man about the accident, and Min Ho secretly attempts to check Seung Ri's cell phone.

Eun Ae stops Dae Chi from breaking into Gyeol's place, and Gyeol coldly kicks Eun Ae out of a meeting.

Gyeol says he will have his adoption dissolved, and Min Ho warns Gyeol to leave Seung Ri alone.

Eun Ae tries to change Gyeol's mind but gets pushed away while Gwon Sik's past is revealed.

Eun Ae reaches out to Gyeol, while Min Ho falls into deep turmoil after hearing Seung Ri's story.

Gyeol deeply blames himself, and Su Jeong makes a major decision after learning the truth.

Eun Ae tries to stop Dae Chi but finds herself in danger. Meanwhile, Gwon Sik finally returns.

Gyeol reflects on his thirst for revenge, while Jeong Ran and Seung Wu learn the long-hidden truth.

Gyeol apologizes to Eun Ae, while Seung Ri reveals her true feelings for Min Ho to Jeong Ran.

Min Ho stands up to greedy Dae Chi, while Gyeol and Eun Ae renew their resolve to build the house.

Kang Su's sudden arrival stirs the contest, while Dae Chi blames him as his condition worsens.

Eun Ae and Gyeol resolve to build their house again, while Dae Chi grows anxious over the will.

Dae Chi plots a way for Team One to win, and Gyeol shows his determination to build Our Happy Home.

Dae Chi fiercely rejects Kang Su's will, while Gyeol and Eun Ae get ready to end the fight.

Gyeol secures key evidence, while Seung Ri gets caught by Min Ho, who discovers her secret.

Shocked by Seung Ri's deception, Min Ho's inner conflict deepens. Gyeol and Eun Ae move to execute their plan.

Shocked by Kang Su's letter, Dae Chi reflects on his actions. Meanwhile, Seung Ri gives Min Ho some space.

Gyeol chooses to live for himself, while Min Ho and Seung Ri struggle with their relationship.

Min Ho asks Seung Ri for a divorce, while Gyeol faces a dilemma after a phone call from the US.

Eun Ae struggles over Gyeol's offer from the US, while Seung Ri makes her final decision regarding Min Ho.