Recommendations

Two high schoolers share a house, fall in love, and the male lead is super cold and aloof. Kiss Me's main man, played by Mike D'Angelo is a much better character and softens over time.

Basically the same plot : rich guy/poor girl. The main character in this both dramas is a single mother trying to do anything for his child.

They both have a main lead who has a concealed identity. Both male leads are athletes and there is also a second male lead that will melt your heart.

Both deal with affairs, the conditions leading to it and the consequences of it

Based on real-life events. Depicting the trials and tribulations of an injustice court system.

Tahara Mika is an ordinary high school girl. One day, out of the blue, one of her classmates kisses her. His name is Sakurai Hiroki also known as Hiro. Hiro stands out because of his bleached hair and piercing. Apparently he is also dating someone. Mika is shocked and hurt that her first kiss had to happen this way. She desperately tries to forget about it. Then, her friend tells her that she should find somebody else and suggests Tatsuya, another boy in their class. However, before she even realizes it, Mika is already in love...

Ninako Kinoshita is a high school freshman with no experience in love. When she meets Ren Ichinose—a handsome boy who’s popular with all of their female classmates — on a train during their commute home, she starts encountering him more regularly and gradually develops feelings for him. However, Ren already has an older girlfriend. As the relationship of these two is explored, several other people in their lives must deal with their own feelings of unrequited love.

They both contain people who communicate with people from the past. They also try to save people who they love with this method.

I know it's older than the others recommended, but it's really the one that started them all. Like all of the adaptations, the plot strays a little from the source material.

Both are political dramas that have women who were elected to high positions. In the case of City Hall, the female lead became the mayor of her city.

They're similar in the sense that they both are about teams of criminals and cops out to solve crimes and they're both OCN shows.

Both dramas deal with trying to make ghosts' wishes come true in order for them to move on to the afterlife.

Both heroines start out with a one sided love for the hero. The hero is emotionally unavailable.

they both have the male leads as people who have lived hundreds of years, both the female leads are idols, both of the leads fall in love

It remind me with sweet 18, both of them marriage coz the elder and the age gap between bride and groom also similar with sweet 18
So if you like hapimari then u might like sweet 18 ^,^