In the gripping tenth episode of "A Virtuous Business," the narrative threads of truth, family, and forgiveness are woven tightly, leading to a climax that is both emotionally charged and deeply revealing. The episode begins with a confrontation at the police station, where Geum-hui, her anger palpable, faces Jong-sun for his role in leaving her injured husband, Won-bong, by the roadside. The tension is cut with the revelation from Do-hyeon that Jong-sun was the one who anonymously reported Won-bong's condition, a desperate act of guilt that offers a glimmer of humanity amidst the chaos.
As the episode unfolds, Jeong-suk plays the role of the voice of reason, encouraging Young-bok to seek reconciliation with Geum-hui rather than retreating into isolation. Young-bok, taking her friend's advice to heart, makes the difficult decision to reach out, a move that sets the stage for a poignant encounter at the hospital. Won-bong, in a moment of empathy, urges Geum-hui to consider Young-bok's predicament, reminding her that their friend still harbors care for their shared circle. Geum-hui, torn between anger and understanding, is further pushed when Young-bok and Jeong-suk arrive, and Young-bok offers a heartfelt apology, clarifying her ignorance of her husband's actions.
The emotional intensity escalates when Young-bok collapses, revealing her pregnancy, a twist that overwhelms Geum-hui and leads to a rushed hospital visit. In the midst of their shared struggles, the two women find a moment of connection, their tears and empathy leading to a reconciliation that is as unexpected as it is necessary.
The following day, Young-bok and Jong-sun offer their apologies to Won-bong, seeking closure for their actions. Geum-hui, in a bid to protect Jong-sun's children from the scandal, requests that Do-hyeon keep the case details private. Jong-sun begins his detention, hopeful for parole, as the narrative shifts to Do-hyeon's personal quest. To celebrate the case's resolution, Do-hyeon invites Jeong-suk over for dinner, an invitation that sparks a flurry of speculation among Jeong-suk's friends. Her nerves are put to the test when she candidly shares her friends' teasing with Do-hyeon, who, with a smile, admits his feelings for her, leading to a tender kiss that signifies the beginning of their romantic journey.
Meanwhile, Dae-geun's struggle for privacy in his relationship with Ju-ri finds a solution when he learns his family will be away on vacation. Do-hyeon's search for his birth mother takes a new turn when his senior officer provides information about an old adoption center, a lead that requires a price but offers hope. They locate the town's midwife, but her Alzheimer's disease complicates their questioning. Do-hyeon learns that "Ok-yeop's mom" might hold the answers he seeks. Jeong-suk's inquiries into Ok-yeop's background make a local woman nervous, leading to a breakthrough when Do-hyeon tracks down Jo Sun-ae, Ok-yeop's mother.
Sun-ae reluctantly recounts her son's death and her financial struggles, but Do-hyeon notices inconsistencies in her story and presses her on how she could afford her current lifestyle. The confrontation takes a dangerous turn when Do-hyeon loses consciousness and awakens bound in Sun-ae's basement, where he overhears her praying for the babies she kidnapped and sold. In a tense exchange, Do-hyeon accuses Sun-ae of separating him from his parents, but she insists he isn't one of her victims, explaining she marked each child with a cross—a mark he doesn't have.
Jeong-suk, following a lead from a convenience store owner, finds Sun-ae's house and spots Do-hyeon's wallet, realizing he's in danger. She bursts in, accidentally starting a fire that leads to a chaotic rescue of Do-hyeon and the arrest of Sun-ae on assault charges. At the hospital, Do-hyeon is devastated at hitting another dead end in his search for his birth parents. Jeong-suk tries to comfort him, handing him a parcel from his U.S. adoptive parents containing the outfit he wore as a baby. Examining it, they notice initials stitched into the fabric: "K.B.H.".
Before they can investigate further, Jeong-suk's friends arrive to check on Do-hyeon. Later, Geum-hui invites Do-hyeon to a party celebrating Won-bong's discharge and suggests he come with Jeong-suk as a couple. At the party, Jeong-suk stumbles upon a box filled with baby toys and a small dress embroidered with the same "K.B.H." initials in Geum-hui's storeroom. Stunned, Jeong-suk returns to the party and watches Geum-hui laughing with Do-hyeon, the realization dawning that Geum-hui might be his mother.
This episode of "A Virtuous Business" is a masterclass in storytelling, weaving a complex tapestry of emotions, secrets, and revelations. It explores the depths of human connection and the lengths to which people will go to protect their loved ones. The episode leaves viewers on the edge of their seats, eager for the next chapter in this intricate tale of family, truth, and the power of forgiveness.