Recommendations

A bullying movie that shocks! At the same time it teaches us a true lesson and irritates us in the form of the mundane injustices of our world!

Based on real stories, the films gently portray the hard battle these soldiers faced to protect the line of defense on their own. Between an onslaught of emotions and unexpected conflicts, they experience an adult war.

As well as "My War" talks about companionship and courageous role of China in the Korean War of 1950-1953.
"Legend of the Patriots" talks about the importance of about fellowship and courage in the Korean War.

Both have in common the strength to overcome, to overcome every obstacle even knowing that their earth days are numbered, are films that teach us to live in a better way.

Similar stories with musical theme. A "musical drama" interspersed with a story, reminiscent of the Disney series.

A bullying movie that shocks! At the same time it teaches us a true lesson and irritates us in the form of the mundane injustices of our world! Much to the applause of director Yun Hak-Ryeol along with his screenwriter Kim Yeon-Ho have managed to give a new meaning to the word bullying and its consequences.

Kim Sae Ron acts as the main protagonist following the same theme, Barby, another long with one of the main themes: trafficking of organs.

Both series have flashbacks from the past and a range of mysteries, which involve multiple characters and someone's death.

Both mature themes and content for older audiences with a good balance of romance and comedy. Really relatable and slice of life with great casting.
Twenty is more focused on the bromance between the best friends than their individual romances whereas My P.S. Lover is about the main characters development but still shows their respective friendship circles and their own friendships are still portrayed with good chemistry.
Really enjoyed both!!!

Its pretty similar...
1. the two girls and tough yet fragile
2. the guys are the hard to get ones.
3. both have drama and romance in the air

Both dramas are about unconventional heroes trying to save the people from a corrupted king, so many twists and turns, keep you guessing what will happen next.

Though not the main focus of this drama, the female lead went through similar experiences and developed the same way before meeting the male lead who helps them become happy. Both have a good look on life and development.

The female lead has a similarly cold and distant personality before meeting the male lead, who helps her open up and overcome her fears in relationships.

both present the situation of an extremely capable woman in times women had little to no perspectives on getting an education and using it for the common good. They aren't greedy for power, but want it to save the state or improve the quality of ordinary people's lives. Their idealism comes in pair with an acute political sense. Even though they're surrounded by the men who love and admire them, their advice is often disregarded, their possibilities limited and their lovers would gladly just put them in a cage so they wouldn't get hurt. You got your fun, girl, now go home and let the boys play.
Both are gender-benders (short arc in Empress Ki, more in Tempest) and hide their identity. Both have multiple love interests. Both become a ruler's concubine. Empress Ki has stronger rivalry in the harem, while in Tempest even though the harem is a scene of a financial schemes, women are in comradery.

both shows are about the afterlife and what these characters did in their past cause them to be who they are now.
both leads are handsome as hell!
both dramas have ghosts in them.