Recommendations

Both are kind of biography of the leads. In both of the drama, the story revolves around one main case. In case of big mouth, it revolves around seo jaeyeong's paper and in why her, it's an accident and SA case.
In both of the drama, antagonist boils your blood but still dies peacefully.

Park Chang Ho is a lawyer who was framed as the infamous swindler "Big Mouse" and sent to prison.

Go Mi Ho is Park Chang Ho's wife who works at a hospital as a nurse. She is willing to do anything to prove the innocence of her husband.

The most obvious similarity is ofc their names, mouse and big mouse.
Big mouse and mouse are both involved with crimes.
Although the characters are different they both deal with 'criminals'.
Mouse has a lot going on in each of their episodes and that makes you question everything, also there are a lot of plot twists that make it really interesting.
Since I watched mouse (in may 2021) it has been my all time favourite kdrama, but now that I watched big mouse it almost reached mouse (while I watched a lot of kdramas in between).
But still mouse is better than big mouse in my opinion.
If you loved big mouse and are a thriller fan, I really recommend mouse.

If you love being depressed and do not mind a few light moments here and there.

Another story around a perfectly complementary couple supporting each other and sorting out their peoples' differences.

Although the setting, circumstances and the age of the characters are very different, I still found them similar because both have a really calm and peaceful vibe, and both are BLs as well. Both the drama and the movie are really beautiful and I would recommend both of them to any JBL fans.

*BASED ON THE TRAILER*
(https://www.youtube.com/watch?v=Cem0yvCby-k&list=TLPQMTcwOTIwMjKdy_SlrQgejg&index=2&ab_channel=%E8%85%BE%E8%AE%AF%E8%A7%86%E9%A2%91)

- It reminded me of Dylan Wang's most recent drama "Love Between Fairy and Devil" since he is playing these two roles of wanting power that they themselves achieved on their own
• Created their own tribe/nation in both dramas
- Dylan Wang's roles are both arrogant & egotistic people
- Both Historical dramas
- Dylan Wang's characters both keep the FL's next to them for their personal reasons
• Uses the FL as leverage for the other side, but the FL eventually wants to be by their side to help them; Wants to "kill" them (at first)
-His character both seek revenge

DIFFERENCE:
- In "Love Between Fairy and Devil", the drama is more fantasy due to the use of magic

- Both FLs are witty and mischievous but also strong and caring to their friends.
- Both FLs share the same destiny to destroy the world
- Both MLs are smart and scheming and they were both prodigys from a young age
- Both dramas have really good chemistry but the romance in the legend is more subtle
- Both dramas have a good balance between fantasy, politics and romance.
- Both were high budget in their time but Kdramas generally stage better battle scenes
- Both dramas have vast fantasy elements and adventure
- Both dramas have interesting characters and a theme of friendship
In general I think The Legend is the most similar to Legend of Fuyao

Both are dark mystery/crime dramas with a group of detectives trying to identify a sadistic serial killer. The same actor is the ML in both.

Both dramas have a dark and creepy vibe and are about a serial killer connected to the past and present. Both MLs seem to have a dark side/are believed to have a dark side.

Both are short length Korean dramas in which someone gets a chance to return to the past and attempt to save someone they cared about who died tragically back then.

Both are short length dramas in which someone returns to the past and tries to save the life of someone who died back then.

Both are short length Korean dramas in which someone gets a chance to return to the past and attempt to save someone they cared about who died tragically back then.

One is a BL and the other M/F, but both are about someone getting a chance to travel to the past and hopefully save someone who died back then. Neither relationship was romantic in the current timeline (in SFOT she barely noticed him and in OA he viewed him as a big brother) but becomes romantic when the person travels to the past. Both dramas have a similar sort of melancholy vibe.

Both are set in the time period and explore the tragedy of war upon the civilians. Both are very poignant, sad stories, with a hopeful but tragic ending.