This Young Hero Is a Little Cold (2021)

The two dramas are an inversion of each other - one is a real world person entering the world of a historical game, the other is a person from a historical game entering the real world.

Both are short dramas featuring a modern day FL in historical times with VR elements.
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Both are short dramas with a modern day FL entering a fictional historical world and messing with the story. One of the leads is meant to be the villain, and both dramas feature a sect and wuxia elements.

Both dramas are about a modern day FL who enters a historically set game with a host only she can see or hear and she must pass the levels to return to the real world.

Both are short length dramas with the same actor as the ML, and both are about someone from the real world entering a fictional historical world in which one of the characters is a villain and the antagonist to the other.

Both are mini dramas with the same actor as the ML. Both have fantasy/wuxia elements and focus on a sect. FL is something of an antagonist.

Both are mini dramas with the same actor as the ML. Both FL s are from the real world and enter a fictional historical world where they were initially cruel to the ML. The FL attempts to change her character and by doing so, ends up growing close to the ML.

Both are short length dramas with the same actor as the ML. Both FLs are from the modern real world and enter a fictional historical world. There is a "host"/controller trying to keep the story on target, and the main couple are antagonists in the story.

Both dramas are set within the world of a historical game that the FL is playing and in which she must accomplish tasks in order to complete.

Both mini dramas are about real world leads who enter the world of a historical game which they must win to return home.

Both are mini dramas about a real world FL who enters the world of a historical game/VR where they find true love.

Both are about a real world FL who enters the world of a historical game/VR in which they must complete tasks to return home.

Both are mini dramas about a real world FL who enters the world of a historical game/VR where they find true love.

Both dramas have one of the leads entering a VR/game historical world in which they must accomplish tasks/earn points to return home.

Both are set within the world of a historical game with the FL trying to accomplish tasks to return to the real world.