Both are historical mini dramas in which the leads once were close, then the FL undergoes something traumatic and returns with a new identity. Both dramas are centered around revenge with a love/hate relationship between the leads.

Both are mini dramas with the same actor as the ML, in which the FL is betrayed and returns for revenge against the ML with the two falling into a love/hate relationship. Both are historical, although set in different eras.

Both are short stories about a personified phone's relationship with his or her human.
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Both are short BL films depicting a breakup and reunion between the leads. Both have a bittersweet feeling and relate in some way to food (one cooking for the other vs. opening a café to wait for the other's return). Half has a happy ending, TSPR has an open ending.

Both have a school setting and a bickering childhood frenemies to lovers relationship between the leads, with one bullying the other.

One is the drama, the other a short cute spin-off.
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Both are short length dramas in which a man swaps places with his sister as the bride in an arranged wedding.

Both are mini dramas in which the FLs are wronged and must form a plan of revenge and escape for themselves. Both have a similar feel.

Both have a similar vibe, with the FL, who is married with a young daughter, suspecting her husband and others in her life are manipulating her. She is aided by another man who has uncertain intentions of his own.

Both are short length dramas in which the FL ,discovers a web of lies around not only her husband but everyone around her, and must form a plan of revenge and escape for herself.

Both are mini dramas in which the FL is wronged and in her revenge plot she becomes entangled with another man who assists her.