You Are My City and Fortress (2021)

The plot seems similar. A special ops force/army man is working together with a doctor at a place amidst calamity/war .

The “Man” is a firefighter or serve for “people” and the “girl” is a doctor. Well, they not 100% similar but 60% similar!

The ML has Patriotic job which serves the nation
Both have similar love stories where they had some story in childhood.

These two dramas are both special forces C-Dramas! Same trope as falling in love and then meeting each other again many years later!

Both these Chinese dramas involve a doctor as the FL and a officer from China. In Flaming heart the ML is a fire figher while in the You are my hero, the ML is a SWAT police officer.

Premise of both very similar to DOTS. For both of these two:

-Female Doctor, Male Special forces/Military Officer. Very much career dramas.
-Initially don't get on, grow together and support each other.
-Slow burn Romance
-Brought together (romantically and work-wise) though danger... natural disasters/bandits etc.
-FLs outspoken and strong in beliefs.

Both leads have professional careers that we see a lot of.
Ml's older sister has a main arc in both dramas.
I feel like You Are My Hero is New Horizon's older sibling... YAMH is way more interesting but has the same feel.
You Are My Hero's romantic progression and plot strength is superior.

A main character is a doctor (FL vs. ML). FL first meets the ML years before when he helps her in a situation, and then doesn't forget him during the years apart until they meet again. Their reunion, however doesn't go as FL planned at first.

Similarities:
Each has a doctor as a lead plus some of the support.
Male chases female first.
All misunderstandings are resolved fast and without dragging.
Has romance and comedy.

Both have FLs that had near death experience but MLs saves them. The FLs will have an opportunity to save the MLs too.

Both have green flag leads with great chemistry.

Both female leads are doctors. The main couple's relationship and romance is very mature and understanding in both dramas. While Live Up to Your Name is a time-travel romance drama, YAMH is a romance between a female doctor and a special police captain. Both are very outstanding dramas.

-Female Leads are doctors
-Great Chemistry between lead couple
-Beautiful Love Story
-Perfect Pairing
-Male Leads are very strong and can fight very well.

Both shows have the males lead saving the female lead which become a crucial point for them to develop their relationship and bond.

Ambos ocorrem no cenário militar, a prota é médica, situação de caos, separação dos amantes, amizade, perdas, resgates

I recommend this both drama because , Male lead and Female lead
try to solve problem
In one drama explosion and another student murder/suicide