- Complete Information ➢ MDL
- Other Names ➢비밀 사이
- Country: South Korea
- Episodes: 8
- Aired: Feb 27, 2025 – Mar 21, 2025
- Aired On: Thursday
- Duration: 25 min.
- Production Company ➢
- Social Media ➢
- Director ➢Yang Kyung Hee
- Screenwriter ➢Jung Soo Yoon
- Actors ➢
- Kim Jun Seo
as Jung Da On- 1THE9
disbanded 2020 - WEi
- 1THE9
- Cha Sun Hyung
as Ju Seong Hyeon - Kim Ho Young as Sin Jae Min
- Cha Jung Woo as Kim Su Hyeon
- Kim Jun Seo
- OST ➢
- Series music
- 비밀사이 (Secret Relationships) by Onha
- Wind by Choi Ji Ho (Chorus. Hong Jeong Hwa)
- Face On by CHOYY
- Full Album
- 비밀사이 (Secret Relationships) by Onha
- Webtoon music
- 툭 꺼낸 말에는 오히려 거짓 없으니까 (Careless I Love You) by Paul Blanco 폴 블랑코
- Instrumental
- Instrumental
- How Can I by JUNNY 주니
- Instrumental
- Instrumental
- 거짓말의 반대말만 할게요(True Love ) by 이창섭 (Lee Chang-Sub) (of BtoB 비투비)
- Instrumental
- Instrumental
- 툭 꺼낸 말에는 오히려 거짓 없으니까 (Careless I Love You) by Paul Blanco 폴 블랑코
- Series music
- Based On ➢Adapted from the webtoon “Secret Relationship” (비밀 사이) by 맥퀸스튜디오 ( McQueen Studio)
- Where to Watch ➢
IQIYI 
Gagaoolala VPN Thailand - Extras ➢
- Summary ➢Daon, a smart and handsome salary man, often clashes with his colleague Sunghyeon. Their relationship becomes more and more ambiguous as time progresses, while other figures like Jaemin, a former tutor, and heir to the company Suhyeon make their way into his life. What shape will this love square end up turning into? (Source: Gagaoolala)
