kdramaongoing

The One and Only

한 사람만

6.8/10(24 ratings)2021KO

Drama#dark-mood#revenge-themes#underrated-gem#slow-burn-pacing#strong-female-lead

A contract killer's life is turned upside down when he gets entangled in a murder case and befriends three terminally ill women. Together, they navigate a complex web of emotions and motivations.

A contract killer gets entangled with a murder case and three terminally ill women who have each decided to end the life of one person before they die.

Editorial mood guide by WatchMoodly Editorial Team · Base catalog metadata via TMDB.

6.8/10 avg · 24 ratings

Mood Rationale & Viewing Guide: Should You Watch The One and Only?

😢sad Mood 💕romantic Mood 🌅nostalgic Mood

Within our mood classification system, The One and Only aligns strongest with a sad / romantic / nostalgic viewing mood (emotional stories that resonate deeply and move you to tears). Key tonal signals include dark mood, revenge themes, underrated gem, slow burn pacing, strong female lead, anti hero character, making it a strong pick when you want a story driven by those themes without spoilers.

Watch If…

•You want a drama k-drama released in 2021.
•You enjoy themes centered on dark mood, revenge themes, underrated gem, slow burn pacing.
•You want a self-contained story that matches your current mood.

Skip If…

•You are looking for a purely lighthearted, zero-stress comfort watch without dark or tense themes.
•You only watch completed stories and prefer not to wait for upcoming episodes.

Official Trailer

Official Streaming Platforms

Vikilegal

Frequently Asked Questions About The One and Only

Where can I watch The One and Only (2021) legally online?

The One and Only is available through official platforms including Viki. Use the streaming links on this page to open the licensed release directly.

What mood and genres does The One and Only fit best?

The One and Only is classified under Drama and best matches a sad or romantic or nostalgic mood, featuring elements of dark mood, revenge themes, underrated gem, slow burn pacing, strong female lead.