Director & Production
• Director: Kim Hye-young (known for her sensitive and emotional storytelling)
• Screenplay Writers: Lee Yu-jin and Jo Ba-reun (adapted from the original bestselling Japanese novel by Misaki Ichijo)
Main Cast
• Choo Young-woo as Kim Jae-won — The ordinary and quiet high school boy who harbors a secret heart condition and dedicates himself to protecting the female lead's fragile memories.
• Shin Si-ah as Han Seo-yoon — The high school girl suffering from anterograde amnesia, causing her memories to completely reset every morning.
• Cho Yu-jung as Choi Ji-min — Seo-yoon's supportive best friend who holds a crucial role in safeguarding the couple's written and digital memories.
• Jin Ho-eun as Jeong Tae-hoon
• Jo Han-chul as Kim Seong-hyeon
Repost is prohibited without the creator's permission.
Director & Production
• Director: Kim Hye-young (known for her sensitive and emotional storytelling)
• Screenplay Writers: Lee Yu-jin and Jo Ba-reun (adapted from the original bestselling Japanese novel by Misaki Ichijo)
Main Cast
• Choo Young-woo as Kim Jae-won — The ordinary and quiet high school boy who harbors a secret heart condition and dedicates himself to protecting the female lead's fragile memories.
• Shin Si-ah as Han Seo-yoon — The high school girl suffering from anterograde amnesia, causing her memories to completely reset every morning.
• Cho Yu-jung as Choi Ji-min — Seo-yoon's supportive best friend who holds a crucial role in safeguarding the couple's written and digital memories.
• Jin Ho-eun as Jeong Tae-hoon
• Jo Han-chul as Kim Seong-hyeon