Both of these dramas stem around the production of an A.I. system which comes to have a major impact on the livelihoods of the main characters. In My Holo Love, the FL struggles to see faces due to a traumatic event which takes place as a child. She comes to encounter an AI named Holo, which leads to a number of events occurring with his creator. On the other hand, in Please Don't Date Him, the FL is developing an AI in a fridge which somehow manages to gain access to network intelligence. At first seeming like a blessing, the drama goes on to show how having access to this AI software causes issues for the people around the FL.
In My Holo Love, instead of allergy for people with have face blindness; instead of falling in love with a robot, it's an hologram; there is a person who looks exactly like the hologram but with different personalities; there is danger and industrial espionage. There are more similarities, but it gets to the spoiler zone, so I'm not writing it here. My holo love is a great Korean drama that I really enjoyed watching and I highly recommend it.