Doom at Your Service, These Top Best Korean Sad Fantasy Series

1. “Ashes in the Wind” (2025) – Romance/Fantasy

A grim reaper tasked with erasing memories falls in love with a woman who refuses to forget her past life. But the more he tries to protect her from the truth, the more her memories come back — and the more it breaks them both. Poetic and tragic, with stunning visuals.

2. “One Day, the Stars Will Fall” (2026) – Fantasy/Melodrama

An immortal stargazer waits centuries for his soulmate to be reborn. When he finally finds her, she has no memory of him — and only 100 days to live. Their quiet, slow-burning love builds to an emotional gut punch that mirrors Doom at Your Service's bittersweet tone.

3. “The Flower That Waited” (2025) – Historical/Fantasy

A cursed crown prince can never touch the one he loves without bringing her pain. Set in a mystical version of the Joseon era, this is a story of longing, sacrifice, and love that can only exist in silence and distance. Gorgeously shot, deeply tragic.

4. “When the Sky Forgot Me” (2026) – Fantasy/Romance

A forgotten god lives hidden in the modern world until he meets a woman who can see him. As they grow closer, he starts to fade from existence — the more she loves him, the less the world remembers him. A slow, painful unraveling of a love that shouldn’t exist.

5. “Winter’s Promise” (2025) – Fantasy/Healing Romance

A girl cursed to bring misfortune to anyone she loves moves to a remote village. There, she meets a man with no past and no name. As they build a quiet life together, the truth of their connection begins to surface — and the price of their love becomes clear.

6. “The Last Letter” (2026) – Time Travel/Fantasy

A man receives letters from the future — written by the woman he loves, years after she died. As he tries to rewrite fate, he realizes the future keeps shifting in darker ways. A slow, beautifully crafted story about fate, regret, and letting go.

7. “Moonlit Glass” (2025) – Fantasy/Psychological Romance

A woman keeps waking up in different lives — each one with the same man, each ending in loss. With every cycle, their bond deepens, but the ending never changes. A surreal, emotional take on love that transcends time but can’t outrun fate.

8. “Tide Between Worlds” (2026) – Romance/Fantasy

He’s from the sea. She’s from the land. Once every 100 years, they get 30 days together. But this time, the tide is shifting early. A melancholic story of love across worlds, filled with ocean imagery, haunting music, and an ending that will leave you breathless.

9. “Lullaby of the Forgotten” (2025) – Fantasy/Melodrama

A woman wakes up with no memory, living in a house with a man who claims to be her husband. But something is off — and as her memories return, she realizes she’s already dead. This one blends ghost stories and romance into a soft but devastating story.

10. “Silent Spring” (2026) – Romance/Fantasy

After losing her fiancé, a botanist finds a tree that blooms only when she’s near. She starts writing letters to him and burying them in the soil — until one day, he writes back. A delicate, emotional fantasy about grief, miracles, and second chances that don’t come easy.

11. “Borrowed Time” (2025) – Urban Fantasy/Romance

A lonely man trades years off his life to spend one month with the girl he’s dreamed of every night. But when that month ends, so does everything he knows. Quiet, eerie, and utterly heartbreaking.

12. “No Tomorrow” (2026) – Supernatural/Romance

A woman sees countdown timers above people’s heads — except for one man. Drawn to him, she falls in love, only to learn his timer is missing for a reason. A slow-burn fantasy filled with dread, tenderness, and a devastating twist.