Recommendations

Enemies to lover trope
Both ML work in the court but also have hidden identity to try and uncover something.
Both have very clever FL
Different plots of course but Similar vibes

its not korean but its chinese drama.
Its not about murder but its kind of time alerting as well, i think if you liked this drama you will most likely like the one i reccomended

Both dramas belong to the slice of life and healing genres...
In both dramas, the FL leaves her job and moves to the countryside...
Both dramas feature village residents who get along well with the ML and warmly welcome the FL into their lives...
Both dramas also showcase exquisite scenery...

What do you do when your best friend (and secret crush) becomes a national sweetheart? This is a story of unrequited love between a girl and her best friend, whose acting career is pulling him further and further away.

What do you do when your best friend (and secret crush) becomes a national sweetheart? This is a story of unrequited love between a girl and her best friend, whose acting career is pulling him further and further away.

What do you do when your best friend (and secret crush) becomes a national sweetheart? This is a story of unrequited love between a girl and her best friend, whose acting career is pulling him further and further away.

What do you do when your best friend (and secret crush) becomes a national sweetheart? This is a story of unrequited love between a girl and her best friend, whose acting career is pulling him further and further away.

Both dramas are adapted from manga.
Both have similar plot involving japan getting destroyed or about to be.

What do you do when your best friend (and secret crush) becomes a national sweetheart? This is a story of unrequited love between a girl and her best friend, whose acting career is pulling him further and further away.

What do you do when your best friend (and secret crush) becomes a national sweetheart? This is a story of unrequited love between a girl and her best friend, whose acting career is pulling him further and further away.

What do you do when your best friend (and secret crush) becomes a national sweetheart? This is a story of unrequited love between a girl and her best friend, whose acting career is pulling him further and further away.

What do you do when your best friend (and secret crush) becomes a national sweetheart? This is a story of unrequited love between a girl and her best friend, whose acting career is pulling him further and further away.

What do you do when your best friend (and secret crush) becomes a national sweetheart? This is a story of unrequited love between a girl and her best friend, whose acting career is pulling him further and further away.

What do you do when your best friend (and secret crush) becomes a national sweetheart? This is a story of unrequited love between a girl and her best friend, whose acting career is pulling him further and further away.

Synopsis:
Jiang Zhu, a jade-waisted slave, must find a Jade Lang on the night of the full moon after coming of age and engage in dual cultivation to absorb his yang energy in order to survive the Cold Bone Syndrome. The powerful statesman Shen Miu, once determined to capture jade-waisted slaves, unexpectedly becomes afflicted by a love curse planted by Jiang Zhu. Bound by the curse’s effects, he is compelled to protect her. Passionate and free-spirited Jiang Zhu brings a vivid, unprecedented experience to the self-disciplined and restrained Shen Miu. As they spend time together, they gradually awaken to the true meaning of love and ultimately join forces to clear the wrongful accusations against the jade-waisted slaves.