Peridot83

Both dramas have lots of strategic intrigue, fight scenes, and a romance that just keeps being a bit too out of reach ...both have a high production budget and are cinematic

The Rise of Phoenixes is more strategy than romance and the intelligence and complexity stays strong all the way through.

In both dramas, the main female lead (FL) is a spirited woman allowed a lot of freedom who falls in love with a prince in disguise.

In both, when the FL realizes the horror of what she's getting into, she tries to back out, compromise, run away from her fate. In both, these attempts are rational, understandable and deeply empathetic. In both, the FL has much more to lose than the prince.

On the other hand, Good Bye, My Princess is darker and more sure of its themes than The Red Sleeve, and it centers the main FL's troubles and sacrifices all the way until the end.

Both follow three millenial couples trying to sort out adulthood. Because This is My First Life, however, is 1000% + better. Actually has points and themes to be made regarding gender expectations, ambitions, and finding purpose in life and the value of life long friends in uncertain times.

Both dramas have:
- similar balance of humor, romance, action and drama
- quick pacing
- an upbeat, occasionally silly but competent female lead, and a grumpy self-involved male lead
- similar production budgets

Both have one, single romance dominating the story between a sunny joyous young woman and an overly serious/grumpy young man. Both stories go very fast, are addictive, and easy to binge watch.