Both involve corporate strategies. Both have two protagonists (a male and a female one) working together to investigate the bad within a certain company and her chains and the people responsible for an incident that happened in the past. Both involve a few people working together with them..
In both there is a person..having a crush on the heroine..whom we know is indulged in dirty affeirs..

Both heroes have an accident that appeared while they were growing up that shaped them for whom they are. Both lost a family member and have another one not in their right mind.
In both they are in love with the heroine, but have to face the decision of loving the child of the person, responsible for his parent's death.

The heroine is a fighter for justice... The hero is her opponent at first.., but starts respecting her battle spirit and soon they start fighting together against the injustices they meet.

A CEO with an obssessive-compulsive disorder falls in love with a messy woman who tries to get used to his many phobias.

Both are very warm dramas with loving couples and almost no other person (there is a guy who follows the female lead and a guy who follow the main lead and even from years, but neither of the leads ever gives them any hopes /almost/..so they are more likely in there for just spiking the guy or the girls attention over the guy in an important moment or so).

Both starts with a cold guy who immidiatelly turns warm towards the girl after she picks his interests into episode 1.

Both have the topic of suicide .. as atleast one of the main characters have thought about it, be ause of problems they face in their life.

All of the heroes face their thoughts of suicide of a strange way and never speak a medical help for the suicide tendencies..
But both shows deals with..how they try to resolve the problems which drive them to consider the suicide.

Both have the concept of already death people having regrets and the way they try to resolve them.
Both series have a female lead, which tries to resolve the stories of the death..have problematic life and an epic love story.
Both have episodic stories involving death people.

Both have both main protagonists born and raised in a rich family.. but later on the female protagonist has a fall out of that relationship and lives for her job .. which is writing novels/comics.
In both they met as young.

The male lead likes to act cold towards the girl at first, but it's actually quite jealousy at her and acts possessive.
Cutesy dramas.. but male protagonists and the female one has many and sometimes annoying rivals.

Both are basically the same story, but with reversed genders.

One of them was chubby.. the other one tried to confes (when they were in middle school), but the chubby one misunderstood the confesion as a mockery.. when the other one tried to clear the misunderstanding.. a terrible incident happened to his family and caused him a long-life trauma.

They re-unite years later to fall in lonpve again.

Both are love stories, which starts with two childhood sweethearts. He is the chubby one at first.. a misunderstanding.. causes them to believe they don't like each other and years later when he is slim and famous..
They discover their feelings again.

Both are love stories between childhood sweethearts..
One of them was chubby... And was unsure of the feeling of the other..
The other one liked her, but was too shy to express his feelings.

They have similarities in the story..
A rich guy with an attitude.. a poor girl with potential, but unnoticed.. the guy likes to ignore/bully the girl and always suspect she is after his money.. His agent/secretary is responsible for a contract relationship between them..
Even the ending is a bit similar. But.. Please love me looks fluffier and Can love become money looks a bit more gloomy to begin with.