Lee Jae-wook’s newest K-drama is already stealing hearts worldwide. After a captivating premiere weekend, Last Summer has viewers eagerly waiting for the next installment. Here’s everything you need to know about episodes 3-4 and what’s coming next.
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Last Summer Release Schedule
| Episode | Release Date | Platform | Time (KST) |
|---|---|---|---|
| Episode 3 | November 8, 2025 | KBS2/Viki/Viu | 9:20 PM |
| Episode 4 | November 9, 2025 | KBS2/Viki/Viu | 9:20 PM |
When and Where to Watch
Last Summer episodes 3-4 arrive on November 8-9, continuing the weekend release pattern on KBS2 at 9:20 pm KST. International viewers can stream simultaneously on Viki worldwide, while Viu carries the show in select regions.
For more K-drama streaming guides, check out our latest Korean drama reviews on Technosports.

What’s Happening in Episodes 3-4?
The romantic tension intensifies as Do-ha joins the architectural team converting an old school into an observatory—the same project Ha-gyeong’s company is handling. Working side-by-side forces their shared history back into focus.
Expect emotional flashbacks revealing their younger years, including hesitant exchanges, developing feelings, and a significant kiss. The story explores their belief that confessing under the Summer Triangle on July 7th would guarantee a lasting relationship—a promise reality didn’t keep.
Despite maintaining emotional distance in the present, both characters show undeniable signs of concern for each other, proving their past isn’t as buried as they pretend.
The Story So Far
Last Summer follows twins Baek Do-ha and Baek Do-yeong (both played brilliantly by Lee Jae-wook), separated after their parents’ divorce. Do-ha was raised in the United States while Do-yeong stayed in South Korea. Each summer, Do-ha returned for 21 days, staying in a duplex with his father and brother.
Their neighbor Song Ha-gyeong (Choi Sung-eun) spent those summers trading barbs with Do-ha while secretly falling for him. Now adults—Do-ha as a gifted architect and Ha-gyeong as an architectural public official—a pivotal incident from two years ago irreversibly altered their lives and fuels the current conflict.
The premiere episodes delivered drama-packed moments: property disputes over their childhood “Peanut House,” cold confrontations, and a near-drowning rescue that unearthed painful memories stored in a box of keepsakes.
Interested in more romantic K-dramas? Explore our top romantic Korean series recommendations.
Early Success and Reception
Nielsen Korea recorded a 2.7 percent nationwide average for Last Summer’s premiere, a solid start for a weekend drama. The chemistry between Lee Jae-wook and Choi Sung-eun, combined with the dual-role performance, has viewers hooked.
Social media buzz suggests fans are particularly invested in unraveling the mysterious incident from two years ago that shattered Do-ha and Ha-gyeong’s relationship.
For behind-the-scenes content and cast interviews, visit the official KBS drama page.

Why Last Summer Is Worth Your Time
This isn’t just another childhood-friends-to-lovers story. The show masterfully weaves past and present, revealing layers of emotional complexity while maintaining genuine humor. Lee Jae-wook’s dual portrayal adds intrigue, while the architectural backdrop provides fresh visual storytelling.
The “will-they-won’t-they” dynamic feels authentic rather than forced, making every interaction between the leads compelling television.
Frequently Asked Questions
How many episodes will Last Summer have?
While the exact episode count hasn’t been officially confirmed by KBS2, most weekend K-dramas run between 16-20 episodes. Based on the pacing and story development, Last Summer is expected to follow a similar format with episodes airing every Saturday and Sunday.
Is Last Summer based on a webtoon or original story?
Last Summer is an original screenplay written specifically for television. It’s not adapted from a webtoon, novel, or any existing source material, giving viewers a completely fresh storyline crafted by the drama’s writing team.







