Also the fact that Jingi told myeongil the money came from the “person who sent me to prison” + the fact that he feels so uncomfortable around his uncle is pretty telling. I think one of the more subtle scenes this chapter was seeing the uncle getting reintroduced by doing something as simple as maintaining the grave site. The moment I saw the plants getting slashed, I had this really eerie and ominous vibe…something sinister about the way those healthy plants were getting cut down out of no where. And the next panel were showed it’s the uncle doing it. Maybe I’m looking too much into it, but I feel like the author puts a lot of detail into their work, and they do a fantastic job with visual storytelling elements.
SPOILER!!! (theories by Korean readers)
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So what happened is Myeong-il opened the letters sent to Jingi. He found out Jingi's crime that sent him to jail, but isn't revealed to us yet. But Myeong-il starts vomiting from disgust by the discovery of Jingi's crime and refuses to go near him as he starts to see him different.
Now, the Uncle of Jingi is shown to collect hundreds of videos labeled 5484. The readers on the Korean site think Jingi did not do the crimes he's in jail for, but took the Uncle's place in jail. And that the crimes were... ped0PH1lia.
((remember how much Jingi tried to kill himself in his first few years in jail by eating objects, stabbing himself, banging his head against a wall? How scared he is shaking when he meets the Uncle))
((and Jingi probably did all this for his family. To get his mother to be safe. To reduce Heonjae's sentence in jail. Jingi took the fall for the Uncle's crimes and spent the last 10 years in jail.))