Both FLs are from an isolated tribe and have a position of power/leadership. Both MLs are princes who accidentally wash up in the river surrounding the FL's village and conceal their identity/motives.

Both are heavy subjects in which the FL endures something horrible and the ML tries to protect her, ending up in prison.

Both MLs go to prison after injuring in revenge someone who hurt/killed someone they love, reuniting with the FL years later.

Both MLs are "killed" in a car accident and then wake up in the body of their brother, becoming involved with the FL again who was their lover and now believes they're dead.

Both are historical mini dramas with a love/hate relationship between the leads, with the FL out for revenge and believing the ML betrayed her in the past.

Both are short length dramas in which a couple breaks up, only to reunite years later at which point the ML discovers he has a young daughter. Both MLs have a disapproving mother who tries to force them apart.

Both couples break up due to misunderstandings and the ML wrongly believing the FL lied to him and used him. They reunite years later with the ML discovering the FL was pregnant when they broke up and he now has a young child with a health condition. Both MLs at one point move into the FL's home uninvited. There is a SML who has been taking care of the FL and the child and who loves her, but she only sees him as a friend.

Both are very similar short Chinese dramas with an episodic format that tell suspenseful stories related to phones.

Quan Neng Wang Fei Sha Feng Le is the sequel to I Am the Queen.
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Both dramas involve the isolated ML receiving a male android who falls in love with him. One is BL and the other hints at polyamory.

Both have a lead who magically and temporarily transforms into completely different people. The other lead has a special connection to them and learns their secret.