Both are short stories that are about one of the leads traveling to their school days to change the other's fate.

Both are short stories in which the lead has a quirky condition relating to their heartbeat either being visible or inaudible. Their condition changes when they meet someone they fall in love with.

Both are a love story between a hearing ML and a deaf FL who initially communicate through a tablet, and then through sign language. Both are sweet stories with a happy ending.

Both are very short movies about the FL who is deaf.
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Both are a love story between a hearing lead and a deaf lead who initially communicate through a tablet, and then through sign language.

Both are a love story between a hearing lead and a deaf lead who initially communicate through a tablet, and then through sign language.

Both are about a writer trying to kill their main character in their novel and the self-aware character fighting back to save their own life/change their fate.

Both are set in a historical/fantasy world in which people have magical powers and abilities. Both FLs are unique in some way, and the MLs have something special about them that helps the FL (gives her magic vs. treats her illness) through touch. Both FLs have a magical object hidden inside them that is the cause of their lack of magic or illness, and someone else is hunting the object.

Both are historical fantasy dramas set in a world where almost everyone has magical powers/abilities and the FL is "special" in some way. Both MLs are played by the same actor.

Both are about the FL attending a party, getting drunk, and later trying to track down the man she was with that night, only to discover there's a handful of possibilities and she must figure out who it was. One merely involves a kiss, the other a pregnancy.

Both are historical mini dramas with the same actor and actress as the leads.
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Both are historical dramas in which the FL is tricked into marrying an ill husband. Both FLs are upbeat and end up curing him.