15. Episode 15 (2025)
As Sang-yeon nears her final journey, Eun-jung grapples with a difficult promise. On the eve of goodbye, they share memories from a lifetime of friendship.
Release date: 2025-09-12
Season number: 1
Episode number: 15
Runtime: 69 minutes
Cast
Kim Go-eun
as Ryu Eun-jung
Park Ji-hyun
as Cheon Sang-yeon
Kim Gun-woo
as Kim Sang-hak
Kim Jae-won
as Cheon Sang-hak / Moonee
Moon Woo-jin
as Cheon Sang-hak (teen)
Chang Hyae-jin
as Sun-young
Seo Jeong-yeon
as Hyun-sook
Joo Min-kyung
as Choi Gyeong
Gong Min-jeung
as Oh Hee-jin
Cha Hak-yeon
as Song Yu-chan
Yoon Se-woong
as Sang-yeon's father
Lee Sang-yun
as Seung-ju
Do Yeong-seo
as Ryu Eun-jung
Song Ji-oh
as Cho Su Mi [Photography club president]