When it comes to supernatural themes, both series adapts an unusual powers and gimmicks. The main male protagonist from both series has a similar personality. Their agenda revolves with supernatural abilities although the main characters follow different paths in pursue of their goals. There is a lot of mystery that also deals with the origins of both series' characters, powers, and overlay of the story. Recommended for fans of supernatural suspense.
Both of these have a similar feel and very similar MC. While both MCs do fail or get hurt sometimes, their strength and determination are undeniable and respected by others. When comparing the two, Arago is darker with more gore and Luck Stealer has more drama and romance. So, in summary the actual storylines/plots differ, but the MCs and "feel" are similar.
Somehow the characters of Until Death Do Us Part and Luck Stealer seem similar, each features both fighting, action, and killing as well as psychic powers. The mc's of these act heroically yet stoically, they do what they do for the sake of another, and each has certain flaws that hang over them, even though their abilities are well above others. They both defend and protect someone who is hunted by opponents who want to use and exploit them. Also each features a mature male lead and a young girl although the circumstances are quite different. They each have sort of a hero that is like the heroes of western comics like Batman or Spiderman in some ways. If you like heroic male leads and action I would suggest both of these.  read more
There's a certain kind of bond between Luck Stealer and Shi ga Futari wo Wakatsu Made. Although their premises aren't alike, both series creates a similar atmosphere throughout their perspective stories. The main characters are also gifted with a powerful ability and although are formidable also puts them into considerable danger. There are also battles of wit and psychological twists in both series as well to accompany its colorful cast of characters.
The main concept shares a similarity as the main character undertakes dangerous tasks to assassinate individuals that in his mind are labeled as "people people". Lucky Stealer has supernatural elements while Kimi no Knife has more psychological scenarios. Despite this, I find both series similar in terms of their execution. In retrospect, the main characters faces off against not only their targets but also their own personal demons. There's challenges that tests them to the limits with their lives at stake. If you're interested in a manga that chronicles a character's dark journey with his goal on hand, then check out both of these series.  read more
Granted, Wild adapter isn't the first thing I think when I look at Luck stealer but hey are similar in many ways. Both the main characters are pretty much assassins and are doing all the can to protect someone near and dear to them.