Episode 8 of "Spring of Youth" kicks off with an intriguing encounter as Bom bumps into Tae-yang amidst a sea of adoring fans in a bustling mall. When she stumbles, he swiftly lends a helping hand, even offering her some medication for her distress.
Later, Bom and her companions embark on another musical journey, this time performing at Seoul National University. To their delight and surprise, Two Sa Gye joins them as a special guest. However, during their absence, a dark twist unfolds as Seung-su sneaks into their house and steals the money he had earlier given to Sa Gye. Upon their return, the theft is discovered, but Sa Gye reveals that he had set up a covert camera to catch the culprit – all part of a meticulously laid trap.
To his utter astonishment, the footage reveals Seung-su as the thief. Heart heavy, Sa Gye confronts him, finally unveiling the long-buried truth: that he and his mother had deceived Seung-su about the circumstances of Sa Gye's blindness. Seung-su had been the one practicing with Sa Gye when the accident occurred, and they had kept the truth from him to spare his guilt. This revelation shatters Seung-su, leaving him reeling.
After this poignant confrontation, Sa Gye seeks solace by purchasing flowers and visiting the columbarium where Bom's mother rests in eternal peace. Unbeknownst to him, Bom follows discreetly, observing his poignant gesture from afar.
Elsewhere, Ji-na breaks exciting news to Tae-yang: he is on the verge of being named the brand ambassador for H, a prestigious fashion label. She reveals that Min-cheol pulled some strings to make this happen. Meanwhile, Seung-su undergoes a heartfelt transformation and decides to right his wrongs. He returns to the office and inserts the photograph of Min-cheol and young Tae-yang by the SUV into one of the news articles about Tae-yang, which he had earlier removed to conceal the vehicle's presence.
With a newfound resolve, Seung-su then heads back to see Sa Gye, seeking redemption by divulging the truth about the car. Coupled with haunting flashbacks from his dreams, Sa Gye finally pieces together the puzzle, realizing that Min-cheol was indeed implicated in the fateful accident.
The following morning, as Min-cheol prepared to depart for work, Sa Gye confronted him head-on about the revelation, and his response sealed the truth. Intervening swiftly, Tae-yang urged Sa Gye to desist from pestering his father further. Obliging Tae-yang to proceed to his workplace, Min-cheol revealed that he had received an invitation to Hanju University as part of a press delegation. With this news, Tae-yang promptly instructed Ji-na to prioritize the arrangements for this visit above all else.
Meanwhile, at home, a heated dispute erupted between Ja-young and Jin-gu, culminating in her refusal to serve him fish. In a covert act of kindness, Gyu-ri slipped some upstairs for him, sharing a tender moment between them. Upon Sa Gye's return, Bom accused him of withholding information, though he dismissed her claims with a wave of his hand.
At the hospital, Min-cheol's plight worsened as a persistent reporter delved into the case of the elderly woman whose surgery he had postponed. Matters escalated when he received a summons from the police station. It transpired that Sa Gye had filed a report detailing a car accident six years prior involving Min-cheol's vehicle. Consequently, a detective summoned Min-cheol for questioning.
Elsewhere, Ji-na attempted to entice Tae-yang into a dinner date, but his thoughts were consumed by his impending visit to Hanju University. During his visit, Bom discovered that Tae-yang not only intended to tour the campus but also to donate new equipment to their band.
At the police station, the detective grilled Seo Min-cheol, who was soon released on the heels of his lawyer's intervention. Min-cheol hastily convened with Jo Sang-heon, who flew into a rage upon realizing that Min-cheol had given the incriminating car photo to the reporter. Blame was cast back and forth, with Min-cheol reminding Sang-heon of his investment in Jo's company and demanding that he rectify the situation.
Returning to the university, Bom persuaded her peers to participate in Tae-yang's visit, though Sa Gye initially balked at the idea before reluctantly relenting. As Bom strolled through town, the twinkling Christmas lights evoked poignant memories of her late mother. Arriving home, she found a postcard for Sa Gye from his mother, which poignantly mentioned his lost sight.
By the conclusion of Episode 8 of "Spring of Youth," Bom comes to a profound realization: he has inherited his mother's eyes through a transplant. Meanwhile, inside, Sa Gye has transformed the entire space with a mesmerizing display of Christmas lights, casting a warm and festive glow everywhere. With a heartfelt revelation, she confesses that she is aware of the truth and finds immense joy in knowing that it was indeed him who received the gift of sight from their beloved mother.
