Chun Woo Hee plays the FL in both, and although the stories aren’t that similar, the FL in both starts out as a con artist. ML in both also really wants to save/help FL.

Characters have special powers in both shows. They use their powers for their own gain at first but eventually learn how to use them to help others. They lose their powers at some point. Some characters aren’t what they seem.

In both shows, the ML and FL are pretty down on their luck and together they’re able to get through it. Both have funny parts and heartwarming parts. Both touch on some pretty serious issues. Both have chaotic bits that will leave you laughing.

Both are violent, action-packed shows that do not hold back from bloody fight scenes and death. There is a theme of revenge in both but in A Shop for Killers it’s a bit more complicated. Both MLs kill people.

ML in both works for a company that cleans houses for the deceased. In Move to Heaven ML is autistic; in Hoshi Furu Yoru ni the ML is deaf.

Hoshi Furu Yoru ni has more romance and drama.

Both are adapted from webtoons. ML in Vigilante doesn’t have powers but he’s maintaining a secret identity. I’m not entirely sure why but they just feel similar—maybe it’s the violent fight scenes.

FL has a special ability in both series that has a big influence on the plot. There are mystery elements in both series and ML and FL live next door to each other. ML kind of pushes FL away at the beginning of the series.

Their posters are weirdly similar too lol

FL has a special talent/power in both series and FL and ML team up to try to solve a big mystery. Both involve shamanism.

In both series, ML is a supernatural being that is kind of struggling with his existence. Both end up falling in love with FL, who is different from everyone else (in MMIC FL is basically cursed in love because of her past life; in DAYS FL has terminal cancer). And in both series ML disappears for a while but returns as a human.

In both series, ML is a supernatural being, ML & FL knew each other in a past life (and FL learns of her past life), and there is a murder mystery going on that threatens FL’s life. Additionally, FL is an orphan and there is a higher power involved in both series.

The fact that these both aired at the same time was kind of ironic, too.

Both are set in a small town! One lead is a local, the other is from the big city. Livestock and farming are a feature of both shows.

Both are charming dramas without too much over-the-top angst. They’re cozy and enjoyable.