Terror Man
What makes this Manwha interesting can be summarized into 2 points.
The lack of information for the protagonist's ability and to see how he deals with the problems stemming from that.
And his quite typical superhero position in the story as the savior of lives and the one to take the blame at the same time, but in a much more unusual way than in some classic superhero stories: Roleplaying as a Terrorist.
The former of the 2 points is what kept me reading so far.
The story has a fast pace and as such it immediately starts out with an explanation of the character's ability.
However, it explains the ability from the standpoint of the protagonist, so while you might be inclined to take the explanation for fixed rules on how things work, it may as well just be the protagonist's own interpretation of his ability based on his experiences.
This combined with the lack of information the ability provides due to it only showing a purple color, makes the situations the character finds himself in quite interesting despite the story going into cliché mode quite a bit.
The ability, as described by the character, "shows which paths lead to 'misfortune' for himself".
The first problem this provides for the main character is that the chroma-information does not yield information towards the severity of the "misfortune". Imagine the hero standing in front of 2 paths of which he must choose one, both which are purple-colored. One might lead to death, the other might make him step into a pile of poo.
A drastic difference in severity of misfortune, yet the MC isn't able to distinguish and hence he can't make the right choice.
The second problem for the protagonist is tied to his personality, since he has a strong urge to help others out. The information provided to him by his ability, however, does not tell him whether misfortune awaits only him or perhaps for other people as well. Examples: The main character does not see a purple color as he leaps towards the end of a bridge, where a pole will collapse on him. As he sees the pole falling, he is surprised that the purple color didn't show, since his life depended on it. Due to interference with a drone sacrifing itself for him, the protagonist makes it out of the situation unharmed here. So his ability didn't show anything purple despite something having to sacrifice itself for him. Imagine the situation with a living person instead. The protagonist would possibly misinterpret a situation as safe-to-go, since it doesn't show purple, yet the ability already calculated into this path that someone would forfeit their lives for him to be safe.
In another scenario the protagonist sees a person being in a purple-colored danger-zone. Which is weird, since the protagonist explained that his ability only shows misfortune that awaits him personally. So either the ability only shows things in purple color within a certain range of him, a la "you could possibly step there, I dunno, so I'll mark it purple just to be safe", which would imply the ability not being able to read the protagonist's intentions. Which seems to be the case in other situations, however. The other possibility is that the ability associates the ability-owner's "misfortune" with the wellbeing tied to persons and objects that matter to him.
And the biggest problem tied to his ability is probably the fact that it is never really explained nor understood by the MC nor a commentator what his power's "misfortune" refers to exactly. The protagonist assumes his ability to show him absolute truths of which choices to make are good and which are not. Whether he will make himself strongly dependant on his ability alone or whether he'll make some own choices and trust his intuition at times instead to make the right choices, that's what will make for some interesting situations at some point, as the character may or may not start to doubt the reliability of his powers. The MC already uses his powers for minor daily activities, as he shows while using it for winning at rock-paper-scissors or answering tests. If he had to choose between different jobs to take, which would he take? What would a purple-colored job even mean in that case? A life where he will end up poor? What if he's happy with being poor, would the ability still show the job option as purple? The MC, Min Jung Woo, has no way of knowing, as all he is given is Magenta.
There aren't that many chapters translated yet, so it's hard to say how much of these problems will be addressed and used for interesting situations within the story, but from what I could tell the story is quite aware of the amiguity and obscurity of how the protagonist's ability is portrayed, as even the main character sometimes mentions some of these points. An otherwise rather mediocre manwha with some potential for good plot thanks to a fortunate choice of a superpower.