Recommendations

The dramas have the same writer. They involve murder and investigation...

The dramas have the same writer. They involve books and the Japanese occupation of Korea...

The dramas have the same writer. They have various storylines to follow...

These two shows gave me the same fuzzy warm feeling inside! If you loved one, I feel safe in saying you will like the other, even thought they don't have much in common plot-wise.
They do share the same type of feeling and idea - watching two people slowly fall in love, completely and irrevocably, and once they are there, never waver.
Both couples are extremely adorable.
Both of these shows have the main characters surrounded by great friends and family members.
And both of these shows are #relationshipgoals and OTP!

I absolutely loved this one. Starring amazing actors, this will get you on your heels.

They are based on the same novel. If you want to watch this drama I recommend watching The Romance of the Condor heroes first, I loved it, I hope this one is up to it as well.

Flamboyant, funny female leads experiencing life in the countryside (farm). Great comedic performances by the female actors.

Voice is a fantastic police drama. The same chanel that Tunnel.
If you like adrenaline and police mystery with much suspense, I indicate watch Voice.
You will like it from start to finish.

This drama is fantastic and romantic, but is not cliche.
The man is cute and girl afraid of relationships.

All involves three siblings separated when they were young due to the death of their parent. They met later both have desire to get revenge

Both give a similar feeling and main character development is kind of same.

A adaptation of same history based on the novel "Boku no Tsuma a Kekkon Shite Kudasai" by Takuji Higuchi (published on November 15, 2012 by Kodansha).

same feeling... guess while watching signal the writer of tunnel thought- wouldn't it be better if the cop came to the future himself rather than just talking through a walkie talkie.
almost similar dramas

Even though both dramas contain different characters and different storylines, I find that the romance between them give off a similar vibe, as well as the main leads.

both strong (in SWDBS quite literally) woman who stand up for themselves, both deal with a big crime(s) and have serious tone while also having at the same time this lighter more humor/comedy tone which creates in both a good balans. Also the male leads are both equally adorable (just like the female leads) and have a lot of cute gestures/actions.