Tomorrow

Both shows feature Grim Reapers dealing with death and suicide. Way Back Love features one story while Tomorrow features several different stories. Also there is more focus on the supernatural elements in Tomorrow.

When I was watching The Divorce Insurance, I thought of Tomorrow because in both series the characters go help someone each episode; in TDI they help couples to not divorce and with their couple issues, when in Tomorrow they help people with their life issues.

Both the shows have supernatural persona involved. The core concept is same but the story and representation of characters are different.

Although they might not have a lot of similarities but i think you would like tomorrow if you enjoyed link click.

Episode 13 of Tomorrow and I Can Speak both are about the same events in history. Both are very moving and heart-wrenching stories.

~Both the dramas include Lee Soo Hyuk in the main cast.
~Both the drams revolve around the concept of gods/grim reapers.
~In both the dramas, some punishment that involves humans is given to the main cast.
~Both of the dramas include some backstories/flashbacks.
~They are supernatural dramas.

Both MLs end up dying saving someone and travel to the underworld which, due to the circumstances of their selfless death, allows the ML to have a special job and a second chance.

Flex X cop is very similar to tomorrow! it can literally be ranked as number 2 closest besides taxi driver. The male lead in this drama reminds me a lot of the funny, immature one in tomorrow that would bother the female lead. Every episode of Flex had a new plot where the detectives would solve murder cases rather than suicide cases!! I definitely recommend watching Flex X cop, it's so good I can't bring myself to finish it!!

-(Bulgasal)-
Deals with immortal beings and the humans their fate are tied to throughout many reincarnations.
Tragic pasts, how to resolve it and trying to protect those you love.

-(Tommorrow)-
A team of grim reapers from previous lives that chose the job.
This special team helps to prevent those wishing to commit suicide by helping them realize they want to live and why.
Also deals with fate and the strings that connect people through their reincarnations

Both dramas deals with dead people wishes and how they can make them at peace
Both dramas give some kind of hope to the living people

Both are heavy in tone dramas dealing with life and death with the message of cherishing the time you have. There are many side stories as well as the main characters' story. Also at least one of the MLs in both dramas is immortal and has a past connection in someway to the FL.

Both the dramas are based on people with various psychological problems and undergo the process of healing with the help of guidance from other.
Both the dramas teach us to have a positive outlook towards life

Tomorrow has the same two actresses, Kim Hee Sun & Kim Hae Sook they both work well together in both series. Room No. 9 is about a soul switching event that changes the lives of both of the actresses. Tomorrow is about grim reapers saving souls. both have their sci-fi elements but Room No. 9 is limited in it's science fiction but it plays out pretty good.

I'm sure if you enjoyed one you'll enjoy the other.

-Not a fantasy drama however it deals with new characters in every episode and you get to see their bad sides. It focuses on juvenile kids and underaged criminals and their wrongdoings.
FL is extremely strict and badass while she follows the law.
These type of dramas are extremely interesting imo.

When I first saw Tomorrow, it just had this odd sense of similarity to IOKTNBO.
First off, the female leads are headstrong. The supporting cast is just a fantastic group! I love each and everyone one of the character and the stories they had. Both had a theme closely related to suicide, mental health, and healing from these scars.