Both FLs are writers whose historical novel is close to the end. Both MLs are the villains of the novels, who magically come to the real world.

Both FLs are in a coma after an accident and part of an experimental treatment where they enter a virtual world where they have a new identity and no memory of their past. The MLs who have been in love with them for a long time follow the FLs into the world but retain their memories.

Both have a lead who was once human in the past and then became immortal and has lived a long life to the present day, and the other lead who is human.

Both FLs discover their husband cheating on them with their friend, are pushed, hit their head, and die/are believed dead. They then get either a second chance at life or new identity and set out for revenge. Both FLs' husbands are unable to have children but the FLs are blamed. There is a man who secretly loves and helps the FLs.

.............................................
......................................................................

STH 2 is the sequel to the first film.
..................................................................................................

Both MLs have feline characteristics and a group of close friends/allies who all work together. Both have minimal romance with a focus on friendship and bromance.

Both have animal-human characters, good fight scenes, and the ML's journey. Both have a similar feel.

Both FLs have low self esteem and find a way to transform themselves into someone different and popular. Both MLs know their secrets and love them for who they truly are.

Both are mini dramas in which the FL is stuck in a time loop and trying to find a way out, while falling in love with the ML along the way.

Both FLs travel from the past to the present and work in fashion. Both fall in love with the ML, a double of a man they were close to in the past.

Both involve a semi-dystopian setting and desperate people playing games to win money prizes.
......................................