One enters into a contract marriage and the other one enters into a fake marriage to cover up a lie.

Contract relationship, male lead is thrives on doing household chores. Female lead wasn't looking for relationship in particular but male lead has some good persuasion prowess

Both drama centers around the leads entering into a contract marriage and eventually falling in love

Fake relationship to ending up actually falling for each other. Female lead had a secret identity/ pretended to be someone else. Main lead does think he is all that, but wait cues in tragic back story. Very cute romance.