Overview: “Walking on Thin Ice” Kdrama (also known as “Eun Su Good Day”) is a KBS2 original drama series that released on September 20, 2025, and starring Lee Young Ae, Kim Young Kwang, and Park Yong Woo. It will tell the story of a mother who gets into a risky deal with her daughter’s school teacher in order to protect her family.
Genre | Crime, Thriller, Slice-of-life |
Episodes | 12 |
Watch Online* | Wavve, Viki |
Director | Song Hyun Wook, Park Hyun Suk |
Scriptwriter | Jeon Yeong Sin |
Air Time & Schedule | Saturday and Sunday at 09:20 PM (KST) |

Table of Contents
Synopsis
“Walking on Thin Ice” tells the story of Lee Kyung (Kim Young Kwang), a kind art teacher loved by his students, who secretly lives a double life as a club MD. Kang Eun Soo (Lee Young Ae) is a housewife struggling to pay for her terminally ill husband’s treatment. One day, she finds a bag full of drugs and decides to sell them, leading her into a dangerous new world. She then meets Lee Kyung, her daughter’s teacher, and makes a risky business deal with him. Together, they build a secret partnership, but soon they are chased by veteran detective Tae Gu (Park Yong-woo), who is determined to catch them. Their choices pull them deeper into danger, with no easy way out.
Main Cast & Characters
- Lee Young Ae as Kang Eun Soo (An ordinary housewife)
- Kim Young Kwang as Lee Kyung (A teacher)
- Park Yong Woo as Jang Tae Gu (A detective)
Still Cuts






Notes & Facts
- Lee Young Ae earlier starred in Korean drama “Maestra: Strings of Truth” (2023).
- Kim Young Kwang earlier starred in Korean drama “Trigger” (2025).
- Park Yong Woo earlier starred in Korean drama “Hunter with a Scalpel” (2025).
- Previous drama on this time slot of KBS2 is “Twelve.”
Trailers & Clips
This is the official teaser of “Walking on Thin Ice,” which shows Kang Eun Su dealing in drugs to help her family escape financial hardship after her husband’s illness.
Episodes 1, 2, 3,….., Highlights
This is the highlight video of “Walking on Thin Ice” that depicts the beautiful, fragile, and emotional journey of a mother who took a wrong path in order to save her family.
*Drama is subject to regional availability.