Weak Hero Class 2 drops hillarious Twinkling Watermelon callbacks referencing Ryeo Un and Choi Hyun Wook, and fans are losing it!

Weak Hero Class 2 just dropped on Netflix, and fans are already piecing together wild connections ¡ª and hilarious Twinkling Watermelon callbacks have taken over the K-drama fandom by storm.

The newly released season brought back Park Ji Hoon¡¯s iconic character, Yeon Si Eun, but it also introduced some fresh faces, including Park Hu Min, aka Baku, played by Ryeo Un. While the action and grit are still very much intact, viewers quickly caught on to a surprising meta moment that sent K-drama Twitter into a frenzy.

How are Weak Hero Class 2 and Twinkling Watermelon connected?

In Weak Hero Class 1 and 2, Choi Hyun Wook played Ahn Soo Ho, Yeon Si Eun¡¯s fiercely loyal best friend. But if you¡¯ve seen Twinkling Watermelon, you¡¯ll recognise him as Ha Yi Chan, the young dad in that time-slip drama. Now, Twinkling Watermelon¡¯s Ryeo Un has joined the Weak Hero universe as Bako ¡ª and here¡¯s the kicker: in Twinkling Watermelon, Ryeo Un played Ha Eun Gyeol, Ha Yi Chan¡¯s son.

So when Ryeo Un as Bako in Weak Hero Class 2 casually tells Yeon Si Eun, ¡°You¡¯re acting like my dad,¡± fans immediately connected the dots. The reference hit like a truck, considering Choi Hyun Wook was Si Eun¡¯s best friend in season 1 and also played Bako's dad in a totally different universe.

Fans also lost it when Yeon Si Eun and Bako first came face-to-face ¡ª naturally, in the middle of a brawl, as expected in classic Weak Hero style. Bako, the standout basketball ace at Eunjang High, steps in during a tense showdown between Si Eun and Ko Hyeon Tak (Lee Min Jae) and Choi Hyo Man (Yoo Soo Bin). While he recognises most of the crowd, he pauses when he sees Si Eun and casually goes, ¡°Who are you? I¡¯ve never seen you before.¡±

i swear weak hero class 2 did a twinkling watermelon reference when baku said he was acting like his dad. pic.twitter.com/0cnCWz8DvG

¡ª tati ?? watching whc2 (@sieunhell) April 25, 2025

That one line was all it took for fans to spiral. One fan joked, ¡°THAT¡¯S YOUR ALTERNATE UNIVERSE¡¯S FATHER¡¯S REAL HUSBAND IN THIS UNIVERSE,¡± referencing the ongoing fan-fueled ship between Yeon Si Eun and Ahn Soo Ho from season 1

¡°and who are you? i¡¯ve never seen you before?¡± BITCH THAT¡¯S YOUR ALTERNATE UNIVERSE¡¯S FATHER¡¯S REAL HUSBAND IN THIS UNIVERSE #weakheroclass2 #weakheroclassspoilers #weakheroclass pic.twitter.com/1l6uGRNSTl

¡ª ? (@leedoohyuns) April 25, 2025

In another easter egg, Baku plays the music from Twinkling Watermelon before announcing his entry, and that's how fans knew they were in for a crossover.

not baku playing music for himself before his entry for the ?main character ?vibes and then stopped it after he beat hyoman for bullying others. WHAT A ENTRY???#????Class2 #WeakHeroClass2 #WeakHeroClass2Ep2 #ryeoun pic.twitter.com/wq68bRcBDj

¡ª ? (@kdramas__) April 25, 2025

About Weak Hero Class 2

Picking up after the explosive events of Season 1, Weak Hero Class 2 follows Yeon Si Eun as he transfers to a new school, Eunjang High, to start over. But peace doesn¡¯t last long in his world as bullies, rival gangs, and new alliances pull him right back into the chaos, and this time, it's grittier than ever.

About Twinkling Watermelon

Ha Eun Gyeol, a CODA (child of deaf adults), leads a double life as a top student and secret guitarist. When he time-travels back to 1995, he meets his teenage dad, Ha Yi Chan, who's rebellious and dream-chasing. Eun Gyeol forms a band with his dad and discovers a new side of his family while navigating the challenges of altering the past.

Whether the Twinkling Watermelon references in Weak Hero Class 2 are intentional easter eggs or just happy casting coincidences, K-drama watchers are happy to watch their two worlds collide.

Weak Hero Class 2 is now streaming on Netflix!

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