Recommendations

The overall plot is extremely simliar with the added gambling nuance in Insider. (Innocent lawyer/prosecutor framed and sent to jail, Become the boss in prison, Came out of prison to become the boss of a 'criminal' organization). Though I would say, the scriptwriter much more consistent with Insider (:

Similarities in both dramas :
- Heartbroken Male lead
- second chance for romance
- Ex-girlfriend Comes Back
- Nice Male and female lead...

Similar in both dramas :
- Death of sibling
- fighting for Custody of nephew
- Nice Male lead
- Strong Female lead......

Similar In both dramas :
- child custody for nephew
- death of sibling
- multiple couples... .....

Similar in both dramas :
- Female leads raises their sister's child
- Female lead and her sister falls love in same man...

Both are short (drama vs. movie) and are about a real world FL entering a fictional historical world with VR elements and trying to survive/return home. Both MLs are royal and initially antagonistic to the FL. The same actor plays the ML in both.

Both are short (short drama vs. short movie), fantasy/historical genres, and have the same actor and actress as the main couple. Both FLs were the MLs first love, and return to him with a different face.

Both are short (movie vs. drama) with a modern day FL in historical times with VR elements. Both MLs are royal.

Both are short (movie vs. drama) with a modern day FL in historical times with VR elements. Both MLs are royal.

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

Both are short dramas with a modern day FL in a historical game like setting in which she must complete tasks to return home. Both MLs are royal.

Both have a real world FL who enter a fictional historical world and fall in love with the emperor ML.

Both have a real world FL who enter a fictional historical world and fall in love with the emperor ML.

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