Youth In Your Name

While delivering coffee to a high school event, Xu Yongxin spots posters for a speech by Zheng Dawei—his long-lost classmate. Overwhelmed, he scribbles a note on a receipt, trusting Dawei will recognize his handwriting, and arranges a post-event meeting.

Mornings are chaos for the Seo siblings: Yong Xin struggles with her wild curls while Yong Yi, annoyingly flawless, nags her to hurry. At school, delinquent heartthrob Du Yaxiu’s sudden return causes a stir—Yong Xin assumes he’s here for her, unaware he’s actually hunting the mysterious note-writer (her). Too late, she realizes her coded letters are missing.

Yongxin’s peaceful school life shatters when Yaxiu starts treating her like a personal assistant—forcing her to do his homework, clean his desk, and even buy his meals. Classmates whisper about their odd dynamic, while Davy grows furious watching her suffer. Unable to bear it, he confronts Yaxiu, demanding he stop tormenting the kind-hearted Yongxin.

After losing her notes, Yongxin gets trapped as Yaxiu's personal assistant while Davy unexpectedly bonds with him. Her suffering turns bizarre when class goddess Zhou YuXuan befriends her, suddenly elevating her social status. Now caught between Yaxiu's demands and new popularity, Yongxin navigates a confusing high school hierarchy where nothing makes sense anymore.

During morning cleaning, Yaxiu cruelly mocks Yongxin's fashionable new hairpin, saying it doesn't suit her. Humiliated but unable to retort, Yongxin focuses on her secret mission - arranging a meteor shower date between Yaxiu and popular girl YuXuan, believing this might finally free her from being Yaxiu's unwilling servant.

When Yongxin sees Yuxuan's missing lucky string and brings Yaxiu breakfast, she assumes their meteor shower date worked and they're now dating. But Yaxiu continues treating Yongxin as his personal assistant, even trying to take her drink, despite Yuxuan's obvious girlfriend behavior. Yongxin grows increasingly angry and confused about where she stands.

After the meteor shower, Yuxuan's behavior suggests she and Yaxiu are now a couple - missing lucky string, bringing him breakfast, cheering at games. But Yaxiu still orders Yongxin around like nothing changed. The class believes the new relationship, yet Yaxiu's continued demands leave Yongxin torn between relief and unexpected hurt. What really happened under the meteors?

Yuxuan's secret - she's not actually rich - gets exposed when classmates overhear her talking to Yaxiu. The class turns on their former goddess, but in a shocking twist, Yongxin pushes through the crowd to defend her. As Yaxiu and Davy stand supportively nearby, the two girls share a tearful moment, with Yuxuan realizing who her true friends really are.

As the four friends prepare for exams, their chaotic study sessions (distracted by Yuxuan's admirers and Yaxiu's comics) lead Davy to propose his brother Dawen as their tutor. Yongxin barely contains her excitement about seeing her crush, though Yaxiu catches her smile. When shopping for a new outfit, Yongxin confidently rejects Yuxuan's trendy picks.

The midterm results reveal Yaxiu as the class's secret genius - scoring perfectly despite never studying. Yongxin, who worked hard under Dawen's tutoring, feels crushed when Yaxiu mockingly points out her repeated mistakes. His casual brilliance highlights her struggles, creating a painful rift as she questions why effort can't compete with natural talent.

Distributing flyers in the summer heat, Yongxin is shocked to see her father with an unfamiliar woman. Over two days, she watches them enter the same building, his cheerful mood and strange cologne deepening her suspicion. Torn between confronting him or protecting her younger brother, Yongxin fears the stable family she knows may be crumbling.

As the group prepares for their beach trip, emotions run high: Davy realizes his feelings for Yongxin and plans to confess, while Yaxiu secretly packs the hairpin she admired but couldn’t afford—a gift he’s waited to give. Yongxin, though tempted by Yuxuan’s glamorous swimsuit, opts for her modest tank top, torn between self-doubt and the courage to step out of her comfort zone.

Spotting Yaxiu in the rain, Yongxin sprints to him with her umbrella. He hands back the notebook that once bound them—the reason he made her his follower. When she asks why now, his answer stings: You’re getting a boyfriend. The unspoken tension between them hangs heavier than the downpour.

Hardline teacher Lin Li's investigation into Yongxin's ruined swimsuit causes student unrest. During a controversial bag inspection, Yaxiu is discovered with prohibited items, resulting in his suspension. The punishment fuels further rebellion against the strict new teacher as lines are drawn between faculty and students.

During her visit to suspended Yaxiu's home, Yongxin discovers his musical talent as he plays Contentment - the song she once associated with Dawen. To her shock, she realizes she no longer thinks of Dawen at all, her focus entirely on Yaxiu's heartfelt performance. Flustered by this revelation, she abruptly leaves, confused by her changing feelings.

The mystery of Yongxin's damaged swimsuit is solved when Lin Li discovers it was accidentally torn by Xiao Hao's dog, Ah Fu. As students' misconceptions clear, they see Lin Li's genuine care. When circumstances force her to transfer, the once-rebellious Yaxiu surprises everyone by organizing a touching farewell party, showing how much the strict teacher meant to them all.

When a sudden crash echoes through their phone call, Yongxin races to Yaxiu in panic. Without thinking, she throws her arms around him - this instinctive embrace reveals her hidden heart. With newfound clarity, she gently tells Dawen she only admires him, while her trembling hands still clutch Yaxiu's sleeves, unable to let go.

Amidst sparkling fireworks, Yaxiu earnestly asks Yongxin to consider attending university together. Just as she starts envisioning this future - and nearly says yes - her brother Yongyi arrives in panic, delivering shocking news about Dawen's accident. The romantic moment shatters as urgent reality crashes in.

Visiting Dawen post-accident, the group is unsettled by his unnatural cheerfulness. After others leave, Yongxin stays to tidy his chaotic home. Dawen suddenly clutches her hand, pleading for her to stay by his side. With gentle firmness, she agrees - but makes him promise to return to school, recognizing his vulnerability shouldn't cost his future.

Davy reappears in class, distant from his old friends. When he cheats on an exam, Yaxiu confronts him, only to witness Davy break down in raw emotion. The others, stunned, simply stay beside him, silently supporting his grief and pent-up sorrow.

Davy moves to the U.S.; Yaxiu is guaranteed med school admission. He wants to confess something to Yongxin—but she fails her exam and vanishes. Yaxiu searches frantically and finds her at the beach, pleading with her not to disappear from his life.

Yongxin gets into Yaxiu’s university but keeps their connection secret. After a surprise spotlight at a sorority event, she’s thrust into campus fame. Rumors swirl about her and Yaxiu, leaving Yongxin more confused than ever about what they truly are to each other.

As Yaxiu begins another day at the hospital, Yongxin visits an art exhibit with Davy. When Davy asks if she’s still in touch with Yaxiu, she says no—only for Yaxiu to appear behind her, teasing. As he walks toward her, the question lingers: what are they now?

After attending Yu Xuan’s stunning wedding, Yaxiu asks Yongxin to meet him the next morning at Windward High. She arrives to find him in a school uniform, following an itinerary that feels oddly familiar—until she realizes it’s from her old notebook. A sweet, unexpected trip down memory lane begins.