Dive into You

1. Premise

Yoon Ha-na and Yoon Ha-ru discover an old camcorder and use the device to travel back to their 18-year-old past, they attempt to alter destiny and rescue their childhood best friend and first love, Jung Woo-jae, from a tragic fate.

2. Cast and characters

2.1. Main

• Kim Ji-yeon as Yoon Ha-na

A top actress who experiences emotional numbness and travels back to her youth using a mysterious camcorder to save her first love.^[1]

• Park Seo-ham as Jung Woo-jae

Ha-na's childhood friend and bodyguard. Formerly a judo athlete, he maintains a long-standing devotion to Ha-na.^[1]

• Jang Se-hyuk as Yoon Ha-ru

Ha-na's twin brother and a national judo gold medalist whose soul swaps with his sister's during the time-slip.^[1]

• Moon Seung-you as Son Ye-rang

Ha-na's agency representative and Ha-ru's partner.^[1]

2.2. Supporting

• Lee Ah-jun as Seok-min

Ha-na's manager.^[2]

• Ha Do-kwon as Yoon Chang-shik

Ha-na and Ha-ru's father who operates a 24-hour raw fish restaurant.^[3]

• Park Mi-hyun as Jung Young-sook

Ha-na and Ha-ru's mother.^[3]

• Kang Hyung-suk as Yang Jun-mo

Ha-na's university senior and a film director.^[3]

• Kim Han-young as Lee Hyung-won

Woo-jae's rival in judo.^[3]

2.3. Special appearance

• Zo Zazz as the street vendor who provides the camcorder.^[4]

3. Production

3.1. Development and casting

In December 2023, Dive into You alongside other projects was confirmed in development under Dexter Pixtures, a content production subsidiary of Dexter Studios.^[5] It is directed by So Jae-hyun, and written by Kim Bo-geum and Lee On.^[1]

In March 2026, the series was announced as a joint production between South Korea's Dexter Pictures and Japan's Amuse Entertainment. Park Seo-ham and Kim Ji-yeon were reportedly cast as leads.^[6][7] By May 2026, the appearances of Park and Kim along with Jang Se-hyuk and Moon Seung-you were confirmed.^[8] On the same month, Rakuten Viki co-ventured in investment and production.^[9]

3.2. Music

On September 23, 2026, NHN Link revealed the OST artists lineup for the series including Rei of Ive, Mingi of Ateez, Kangnam, Jeon Geon-ho, Lee Min-hyuk, and Jung Ye-won.^[10]

4. Release

Dive into You was confirmed to be released globally on Rakuten Viki.^[11] The series' premiere date was confirmed to be on September 26, 2026, on Channel A and will air every Saturday and Sunday at 22:40 (KST). It will also be available for streaming on Disney+ in South Korea.^[12]

5. Ratings

Average TV viewership ratings (nationwide)

Ep.	Original broadcast date	Average audience share (Nielsen Korea)[13]
1	September 26, 2026	0.3% (47th)
2	September 27, 2026	0.5% (33rd)
3	October 3, 2026	0.6% (25th)
4	October 4, 2026	0.4% (37th)
5	October 10, 2026
6	October 11, 2026
7	October 17, 2026
8	October 18, 2026
9	October 24, 2026
10	October 25, 2026
11	October 31, 2026
12	November 1, 2026
Average		—
In the table above, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings. This drama airs on a cable channel/pay TV which normally has a relatively smaller audience compared to free-to-air TV/public broadcasters (KBS, SBS, MBC, and EBS).