When the Earth Is Shaking (2024)

Similar concept, but a longer version. ML is an undercover cop for both series in order to investigate mafias/gangs that sell drugs

All though both dramas have different plots. But they share some similar ideas.
- FL leads have similar personality.
- ML is intelligent and loving.
- Both leads pretend to be a couple and continue their investigation.
- both leads slowly fall in love.
- Both dramas have gun fighting and action scenes.

Both have the same kind of vibe and both MLs are working undercover with the FL initially accidentally being caught up in the events.