PhantomzK

That is a huge stretch. If he was lying that he was deaf, then he would have been lying for half his life since getting married to having children, all the way to his children becoming adults. Not to mention the incident in which metal pipes almost fell on one of his kids where the MC kept screaming for his help and he did not react until the MC threw something at him to get his attention. If he was pretending to be deaf here, then that would mean that he was actively ignoring his childs distress and leaving them to die.
It was also mentioned in the present by his ex band member that an accident happened to one of their band members that made them disband. This band member is likely the MC's father. The accident is likely to be the cause of him going deaf and also why he does not want the MC to do music.

Mother seems to be deaf early on (possibly born deaf or became deaf during childhood offscreen). Father likely became deaf during an accident with his band (The accident that was mentioned by his ex band mates in the present) that caused them to disband eventually. This event might have also created a rift between the younger father and his crush, they lost the connection they had in music since he could no longer hear. Because the cause of his deafness was likely related to music, its become a sort of trauma for him that has carried on to the present, which is why he seems adamant about not letting his son do music. The rift between him and his crush however instead brought him closer to his current wife who is deaf (I suspect she had a crush on him to begin with), them bonding due to having the same disability (she probably became an anchor and shoulder to lean on for him at the time) and her being his guide into the world without sound.

One thing I was a bit confused about is that the doctor's daughter in the beginning of the 1st episode did not seem to be Ro-Hee if I'm not wrong. It could be that that was earlier in the timeline, but the demeanors are also different, which makes you beg the question of whether they are truly the same person. Not to mention, that the relationship between father and daughter in that scene seemed very good. Perhaps, something happened to his daughter after the traumatic incident when she had her throat slit, leaving her mentally handicapped due to the shock of the trauma. The doctor might have "adopted" Ro-Hee" from somewhere to run experiments in the hopes of "curing" his own daughter. Subsequently as a result, Ro-Hee became smarter. Either that or she was simply a genius to begin with and he's trying to study her brain to somehow help his daughter, Idk. But, its clear that there are a ton of other people who knew what was going on and were directly related to what was happening to Ro-Hee

Her position seems to be above that of Min. And if she really is anti-aging (aka immortal), she's probably the head of the NIS and potentially even more. She would have had plenty of time to amass power over the years. This means that in the end, Min was but a pawn of hers.
This also decreases the likelihood that powers were artificially obtained since they would have been present much longer than we thought with her existence.
Not to mention, if we add the "Timing" series into the mix and its sequel, then it further disproves the idea that their abilities were artificial. I say this because of the existence of "Mediums" and "Grim Reapers" and the fact that the there were no evidence that the parents of Youngtak had powers like he does. They're never even mentioned despite the fact of what happens in the series and the danger he is thrust into.
Thus, I am much more confident that the abilities are innate. They're like the naturally born supers from "Heroes" or the mutants from "X-Men", except identical powers are passed down.

Really hoping they continue this series. I've tried to look for the "Bridge" series after reading the authors other series, but can't find it anywhere.
And if they do decide to do another season, hopefully it is sooner rather than later. Who knows if any of the current cast members might grow out of their roles in a few years. I'm pretty sure the sequel takes place relatively right after the events of 'moving' after all. The ending of this season of the show also leaves a lot more plot to be uncovered, so it definitely seems like it was made with a potential 2nd season in mind. But you never know.

Because theres an entire related universe as well as a sequel to this series in the webtoons that connects the authors other series

So I took a look at the 'Timing' manhwa along with its sequel. Its pretty good.
1. He indeed has the power to 'Stop Time', not 'Reverse Time'. However, time stops and starts again with him as a focal point, so as time starts again, theres a sort of ripple effect that happens, causing some people close to him to notice weird silences at times, which I affects their immediate thought processes, which is sort of an explainer for that change in tune with the teacher in the drama.
2. There is also someone who can perceive a second of time in 1/1000 of a second, so he notices pretty much the most minor details around him, including the changes that happen when time is affected around him.
3. There is also someone with the ability to reverse time by 10 seconds, but thats not the person who appears in the drama and he isn't a student either.
4. The other main characters includes a medium who can dream about extreme disasters and another dreamer with narcolepsy that allows her to dream 10 minutes before an accident happens, and Grim Reaper characters.

Theres a much different tone as compared to 'Moving' as its a mystery theme, but its a good read. I am hoping that they adapt this as well as adapt the sequel to 'Moving', 'The Bridge' that ties both series together for season 2.

If thats true, then its likely that his ability isn't time stopping, but rather rewinding time instead. He can probably rewind time by a few seconds or minutes to redo certain events in his favor. This also likely means that he knows whats going on. After all, this ability would make him one of the most hidden characters that will be very tough to track. In the first place, we don't actually know if the teacher knew he had powers to begin with. Its likely that he had that interview with all of his students, gifted with abilities or not, but we were shown only those who did have a modicum of abilities. Thus, all he had to do would be to reverse time a bit and change their conversation somewhat that affected the outcome that we saw if the teacher believed him powerless. After all, if he can reverse time rather than stopping time, then he can do things undiscovered even by that principal. It would also be much harder for others to realize that he had abilities.

The NK ones were likely forced into a training program by the government after the Kim Doosik ordeal.

Idk about him being in school still. Seems like a huge stretch. But I agree that he likely knows a lot. He probably transferred because he found out about the hidden agenda. As for him convincing or manipulating the teachers mind, I'm not sure about that. I didn't notice, I'd have to look again. If thats true, then his ability might not actually be stopping time but reversing time by a few seconds or minutes, allowing him to redo minor events. We just don't see that happening because its not too important to the plot of this show.

Also I think that the NK weren't implying that the superhumans were artificial or anything. I think what they were saying was that Kim Doosik's appearance in the past in NK and the assassination of their president made the government aware of superhumans, resulting in them capturing superhumans and forcing them into a training camp much like the american one. Then, some brainwashing tactics/propaganda used to blame SK and Kim Doosik for all of their suffering.

As to why some students did not receive passing grades, its not that they didn't inherit their parents genes 100%. Thats not how genes work. Its that the original genetic donor (aka parent) had other factors aside from their superhuman abilities that allowed them to use their ability to the best of their capability, that the children simply don't have. And a lot of this has to do with the type of environment they grew up in. The past was quite chaotic as compared to the present. The parents likely developed their powers proactively to survive their environment and later excel with them. The children are more or less pampered in modern day environment and don't have the same mentality to actively train their abilities to be able to fight with them.

The original Electric user didn't have superhuman strength, but he knew how to fight and how to channel electricity much better than his son because his son never sought to train his powers, not to mention he was just simply unathletic.

Bong Soo grew up afraid to use his powers and thus is just discovering how to control them properly.

At the moment, the most proficient user of their ability is technically the super strength student because its a relatively simply ability if you think about it and he's been aware of most things since a child. The only thing in his environment keeping him back would be that he constantly has to restrain himself from using his ability in public and to not hurt anyone. Thus, if he fought with another super strength user, he would likely be disadvantaged due to lack of combat experience.

I think that the reason why Huisoo only has accelerated healing factor is because that is the only power her father has. The reason why he presents with super strength is simply because of muscle ripping and bone breaking training and experience from his past as a gangster and then agent. Huisoo doesn't have that experience not to mention that she has a physical disadvantage to begin with just by her being female. This means she would have to go through much harder training and tougher experience to reach her fathers level of physical capability. But thats unlikely to happen not only because that would have to put her in a life of constant life or death situations and excruciating levels of training and pain, but thats just not the life she's likely heading for considering the 'relative' peace in her environment.

Considering how good the principal is at tracking ppl, it is unlikely that he never found out the janitor lady was a spy. He himself honestly seems a bit sus tbh. We still don't know his true motives despite how proactive he is. I doubt he's a NK spy but I don't think he is 100% on the Directors side either. He seems to have his own agenda.

He probably found out about their plans without them knowing. He can stop time after all.

No he just stopped time. Idk where you saw him erasing anything. Time just stopped for a moment as shown by the clock and then resumed. I saw comments somewhere that he's the MC of another one of the authors manhwas.

He prob gonna be fired this time since he put passengers at risk. I'd be surprised if not.

Idk if killing Min would have been the best idea. At least for the country overall. It kind of seemed as though he was the only one in the upper levels of the government that was trying to plan ahead in terms of national defense in the form of "super soldiers". Even if it was mostly for his own selfish ambitions, as we see in the current timeline, he wasn't wrong at all in that other countries are developing their own super soldiers, even their enemies. He's become more of a necessary evil that may pave the way for a better system of the recruitment of super powered individuals after the events of this series. Because now that super spies are appearing around the country killing people left and right, it will eventually become a wake up call for the rest of the government. By then, Min's role as the "necessary evil" will be replaced by the rest of the government. And then, we will see what methods they will use to recruit super powered individuals, whether it will become something more open or still in the dark. The idea of a school for super powered kids isn't entirely bad if it wasn't so secretive and essentially tricking people unwillingly.

So, does the alleged North Korean Spy thats following Bong Soo and Hui Soo have the same abilities as Bong Soo and his dad? It looks like he was floating stably in that bus when everyone was just about to go flying.

Ok so I guess their powers aren't from human experimentation by the government as I had thought they were. I guess the only reason that they are referred to as "1st gen" is simply because they were the first batch of superpowered in recorded history to have been "discovered" by the government. I guess their powers are more akin to the mutants from the mcu then. Maybe they are a new evolutionary branch of the human race considering how scarce in numbers they still are compared to the rest of humanity. And the "mutant" gene is clearly hereditary since their children can inherit them.

"Superheroes" is the wrong term. He just wants to create supersoldiers under his command. The 1st gen supers were all adults that in some capacity worked for them more or less as a normal equal employee (at least initially). However because of that, they are basically government employees with their own ideals. Thats why they're harder to control. They are already adults with their own lived experiences and thoughts. Thats why that Director Min had to opt for manipulation tactics and threats to get his way. However, the newer generation are different. They are still young and impressionable. Just like how the American Alphabet Assassins were created. I'm sure if Director Min could, he probably would have done something similar. Instead, by the time the main present storyline unfolds, most of the 1st gen have probably already retired and initially doing their own things. Some had children but the government probably made a deal with them and in some capacity lost contact with them. Thus, to lure them back under him, he created a school that will basically "invite/recruit" superpowered children into it. Its a testing ground to weed out those who they deem as useful and those who aren't. We have yet to see what happens to the "useful" ones probably because they haven't had any yet until the present where the 2nd male lead has been identified as one and it even seems as though he might be in on the loop at least to some extent.