Story Structure — 4 Plot Phases
The Return of the Past
Hye-jin's predictable life is disrupted when her former student Joon-ho returns to the academy after a decade away.
Key Events
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Hye-jin's Routine Life — Hye-jin follows her predictable routine as a cram school instructor Characters: Seo Hye-jin
Location: Daechi-dong Academy
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Joon-ho's Return — Joon-ho returns to the academy after a decade away Characters: Seo Hye-jin, Lee Joon-ho
Location: Daechi-dong Academy
Midnight Secrets
A secret romance blossoms between Hye-jin and Joon-ho in the quiet hours after the academy closes.
Key Events
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Secret Romance Begins — Their secret romance blossoms in the midnight hours Characters: Seo Hye-jin, Lee Joon-ho
Location: Daechi-dong Academy
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Instructors' Community — The academy instructors reveal their personal stories Characters: Seo Hye-jin, Kim Hyun-tak, Nam Chung-mi, Woo Seung-hee, Min Hee-joo
Location: Daechi-dong Academy
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Professional Conflict — Hye-jin struggles with maintaining authority while dating a former student Characters: Seo Hye-jin, Lee Joon-ho
Location: Daechi-dong Academy
Professional Dilemma
Hye-jin struggles to balance her professional authority with her personal feelings for a former student.
Key Events
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Professional Conflict — Hye-jin struggles with maintaining authority while dating a former student Characters: Seo Hye-jin, Lee Joon-ho
Location: Daechi-dong Academy
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Midnight Encounters — Their private moments of connection at the academy Characters: Seo Hye-jin, Lee Joon-ho
Location: Daechi-dong Academy
New Beginnings
Both characters reassess their life choices and find happiness in their relationship despite the challenges.
Key Events
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Life Reevaluation — Both characters reconsider their life choices Characters: Seo Hye-jin, Lee Joon-ho
Location: Daechi-dong Academy
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Romance Revelation — Their relationship is revealed to the academy community Characters: Seo Hye-jin, Lee Joon-ho, Kim Hyun-tak, Nam Chung-mi, Woo Seung-hee, Min Hee-joo
Location: Daechi-dong Academy
A secret and sweet real-life romance between veteran academy instructor Seo Hye-jin and her flirty student Lee Joon-ho, who returns after 10 years and stirs her heart.