Halfway through Crushology 101, our favorite Hallyu campus romance rolls on—and things are getting delightfully messy. First crushes combust. Then exes stage surprise cameos. Through all the chaos, Jae-yeol and Hee-jin inch from “just friends” toward “maybe more,” while the campus rumor mill spins at full speed. In Episodes 5 and 6, misunderstandings flare, sprinklers blast, and a well-timed rain shower might just seal a budding romance. Buckle up for a deeper dive into friendship-turned-love, the terror of academic pressure, and the eternal question: will she choose the dependable sunbae or the ever-earnest best friend?

TL;DR
- A girl has feelings for a boy who confessed.
- Her past worries make her unsure if his feelings are real.
- Another nice boy is always there for her.
- The first boy’s ex-girlfriend comes back.
- The girl gets closer to both boys in different ways.
- She needs to figure out who she really likes.
- Love can be confusing with old and new people.
1. From Dream Nightmare to Wake-Up Call
First things first: let’s talk dreams—nightmarish ones, at that. After Jae-yeol’s surprise confession, Hee-jin wakes from a ridiculous fantasy in which he proposes, they tie the knot, and she lands behind bars for “wild imaginations.” Okay, so maybe that’s not in the admission brochure for campus life. Nonetheless, this dream sets the tone: Hee-jin’s mind is racing, her heart is thumping, and the line between reality and paranoia is blurrier than ever.

- Initial Denial. The next morning, Hee-jin chalks Jae-yeol’s confession up to a drunken slip-of-the-tongue. Hee-yeol, ever patient, assures her he was stone-cold sober.
- Trauma Flashbacks. Given Jae-yeol’s history of pranks and “bullying,” Hee-jin assumes this is a new torment tactic. Consequently, she deploys avoidance strategies worthy of a romantic ninja—ghosting lectures, sidestepping group chats, and taking the scenic route between classes.
Yet fate (and a surprise safety inspection) intervenes. When the library sprinkler system goes haywire, Hee-jin finds herself seeking refuge in Jae-yeol’s photography studio. Cue awkward small talk, stifled glances, and sweaty palms. Who says romance can’t bloom under fluorescent emergency lights?
2. When BBQs Backfire (Literally)
Next, Jae-yeol’s best friend Dong-ah drags Hee-jin’s confidante Bo-bae—and unsuspecting Ji-won—into a study session that doubles as an impromptu barbecue. You know the drill: sizzling meat, forearm flexes, and smoke signals that trigger the fire alarm.
- Manifestation of Crushes. Bo-bae swoons at the grill-master’s biceps, while Ji-won—I mean, the token second male lead—tries not to feel left out.
- Equipment Mayhem. Amid cleaning up charred skewers and borrowed cameras, Jae-yeol’s true concern surfaces: did Hee-jin get hurt in the sprinkler deluge?
- Subtext Everywhere. At this point, even the campus pigeons know Jae-yeol’s feelings run deeper than friendship. Hee-jin? She’s still clutching her trauma-response cushion, entirely oblivious to her own fluttering heart.
That barbecue-cum-emergency crossed a boundary: they laughed together, cared for one another, and felt that electric nostalgia of a first crush.
3. Midterms, Meds, and Midnight Drives
Meanwhile, Hee-jin’s real-world stress takes center stage. Her project feedback? Tepid. Grades? Sliding south. Scholarship? Dangle-and-drop due to tuition that could fund a small nation. In short, she’s one panic attack away from a meltdown.
Ji-won to the Rescue (Sort Of). Ever the designated “good friend,” Ji-won whisks Hee-jin out for a night drive—windows down, headlights on, K-pop ballads in the background. He hopes a change of scenery will restart her confidence meter. When he drops her at home, Hee-jin’s dad offers an approving nod: “Nice kid. You’ve chosen a good friend.” Heat flares in Hee-jin’s cheeks.
Realization of Feelings. That night, she catches herself smiling at the package of cold meds Jae-yeol handed her earlier. Suddenly, she realizes: it’s not just physical comfort she craves. It’s him.
Key Insight: Recognition often strikes quietly, in small moments—a shared laugh, an unguarded smile. Episode 5 teaches us that self-awareness can blossom without fireworks.
4. Enter the Ex: Han Yeo-Reum’s Grand Return
Just as Hee-jin starts tracing heart-shaped outlines in her notebooks, Han Yeo-reum breezes back into campus. Former executive MC of the university festival, rumored to be Jae-yeol’s ex, she’s poised to stir the pot.
- The “We Need a Break” Ambush. Two years ago, Yeo-reum dropped Jae-yeol with a textbook ghost-ing move, declaring “break” before jetting abroad.
- Campus Rumor Mill. Gossip spreads faster than wildfire. Text chains buzz: “They were a thing!” Hee-jin seats herself at the Insecurity Table, nibbling on her doubts.
- Jae-yeol’s Inner Struggle. On top of this romantic turmoil, he’s processing major family drama: his mom’s new relationship with a faculty professor. In other words, Jae-yeol’s juggling more hats than a carnival clown.
Yeo-reum’s charisma is undeniable, but her motives? Questionable. She claims she “missed him,” but Hee-jin sees the cracks: Yeo-reum’s version of “taking a break” didn’t include a return address.
5. Brother Zone and the Unseen Suitor

Seeking respite from romantic drama, Hee-jin tags along with Ji-won and his adorable younger sister. As Ji-won gently teases his sis, Hee-jin’s sister-envy kicks in: wouldn’t it be nice to have an attentive older brother? Oops. That line just slammed her into the brother zone.
Minor Collision. A stray basketball whizzes by. Ji-won and his crush both leap to protect Hee-jin. She finds herself sandwiched between their outstretched arms—PB&J central. Meanwhile, Handsome Guy #4 (Hyun-oh) retrieves the ball and offers a shy smile. Their eyes meet, but our screen time is limited. Alas, Hyun-oh’s charm remains an Easter egg until future episodes.
New Insight: In a love polygon, unexpected vertices (friendly protectors, silent admirers) lurk in the margins. Keep your eyes—and heart—open.
6. Lights, Camera, Rain: The Extra Job Date
Desperate for extra cash, Hee-jin signs on as a production extra. Jae-yeol, ever resourceful, begs Bo-bae to snag a spot on set so he can tag along.
- Background Duo. They stand behind the lead actors, whispering quips about their own “main character” vibes.
- Dramatic Downpour. In classic K-drama fashion, the sky opens up mid-scene. Rain drenches camera equipment and costumes—but to Jae-yeol and Hee-jin, it feels like cinematic serendipity.
Here’s a takeaway: romance doesn’t need grand gestures. Sometimes, a shared inconvenience—wet hair, muddy shoes—becomes a memory etched in lightning bolts of connection.
7. Pasta, Proposals, and “Dead Fish” Kisses

After the soggy set, Jae-yeol finally secures a “real” date: pasta night at a cozy bistro. Hee-jin says yes, cheeks aglow.
- “Oppa” Moment. She calls him oppa for the first time—cue internal victory dance for Jae-yeol, who feels his status elevate from “sunbae” to “senior crush.”
- The Ex vs. The New Flame. En route to their date, Yeo-reum intercepts Jae-yeol with a dinner invitation. He reminds her of the break-and-ghost saga. She counters that “break” isn’t “breakup,” and accuses him of still having feelings.
- Hee-jin’s Heartbreak. Watching this showdown unfolds like a public auction of Jae-yeol’s loyalty. She retreats, tears blurred by streetlights.
- Chase and Confession. Jae-yeol dashes after Hee-jin, blurting, “I like you,” then plants what only can be described as a “dead fish” kiss—awkward but earnest. Romance level: solid 7/10.
Creative Spark: That half-hearted kiss underscores authenticity. No dramatic swoon. Just two people fumbling toward honesty.
8. Triangle Tensions: Who Deserves Her Heart?
At this turning point, three intentions collide:
- Jae-yeol’s Pursuit. He’s juggling family drama, a scheming ex, and burgeoning feelings for Hee-jin.
- Ji-won’s Silent Affection. He’s played it cool, emphasizing “friend zone,” but his wallet stash of her photos tells the true story.
- Hee-jin’s Own Healing. She’s still working through past hurts—academic setbacks, parental pressures, and the specter of old heartbreaks.
My Take: Sure, Jae-yeol’s charisma is magnetic. Yet his life is a pressure cooker of obligations. Ji-won, on the other hand, offers steady support and no ghost-ing.
Key Reflection: Love isn’t just about chemistry. It’s also about reliability, emotional safety, and a partner’s capacity to hold you up when life floods you like those sprinklers.
9. Personal Point of View

Here’s where I lean in with unfiltered counsel: Jae-yeol dazzles like campus royalty. But he’s juggling too many roles—son, crush object, ex-boyfriend, aspiring photographer—while still growing up himself. His hubris could scorch Hee-jin’s tender feelings if he isn’t mindful.
Conversely, Ji-won channels the “steady flame” archetype. No dramatic gestures. No sudden disappearances. Just genuine care. Yes, it’s less flashy. Yet long after the ex-drama fades, a dependable partner’s consistency endures.
Ultimately, Hee-jin’s choice must arise from self-worth, not pity or adrenaline. She deserves someone who meets her at midterms and midnight drives alike. After all, her heart worked overtime to realize its true inclination.
10. Closing Thoughts & Teasers
Episodes 5–6 of Crushology 101 remind us that romance is messy. It’s a collision of timing, traumas, and unexpected rainstorms. Through sprinkler mishaps, ex-shows, and pasta dates, Jae-yeol and Hee-jin inch toward authenticity—while Ji-won lingers in the wings, armed with kindness and sincerity.
Stay tuned: will Hee-jin find clarity amid the crush chaos? Will Yeo-reum’s return fizzle or explode? And can Jae-yeol balance his responsibilities without burning out? In the next episodes, braces will snap, secrets will slip, and one heart may finally speak its truths.