'My Youth': Choi Jung-woon and Song Joong-ki engage fans with their sibling chemistry

A charged first beat

Choi Jung-woon

's entrance as

Eun Nu-ri

lands fast and clean, locking into brisk repartee with

Song Joong-ki

that immediately reads as lived-in siblings on screen. Their exchange-jumping from a money quip to a childhood novel and a stubborn bracelet-condenses family history into a punchy, funny beat that lingers past the scene.

Chemistry that crackles

Nu-ri's dry needling and the sudden back smack after a cheeky "wish" tease generate organic laughter while mapping a nimble rhythm with Sunwoo Hae. Coverage around the rollout frames ensemble chemistry as a core hook, and early attention has gathered around the family line's snap and warmth in equal measure.

Range on display

Known for weightier turns in recent projects, Choi shifts to a bright and charmingly prickly tone, delivering crisp, high-clarity beats that cut through even limited screen time. Slotted within Song Joong-ki and Chun Woo-hee's grounded melodrama, her presence broadens texture and stakes as relationships deepen across intertwined timelines.

Fridays, doubled

'

My Youth

' airs two episodes back-to-back every Friday at 8:50 p.m., a steady cadence that invites weekly mini-binges as the reunion arc builds momentum. From the Seoul presentation, the team emphasized relatable romance; as MBN News reported, it's pitched as a "fresh reunion romance" designed to evoke first love without excess gloss.

About Choi Jung-woon

Born in 2001, Choi Jung-woon studied theater at Chung-Ang University and debuted in 2018 with the film 'Following the Shining Object,' later drawing wide notice for 'Moving On' and collecting newcomer honors across Korean film awards. She has steadily expanded into television, recently drawing attention through roles that highlighted detailed emotional expression before pivoting to a lighter register in 'My Youth.'