Onedine

"When it comes to acting, it’s no wonder Yo-han’s two-faced nature is in good hands with Ji Sung. Ever the versatile actor, Ji Sung adds a necessary robustness to the volatile character. The real surprise here is Jinyoung, not because he lacks the skill, but because Ga-on could’ve very easily been overshadowed by Yo-han’s larger-than-life presence. Fortunately, with his expressive doe eyes and understated nuance, Jinyoung is convincing and immersive, which is extra-high praise for anyone going against Ji Sung. He doesn’t overact (unlike many of his peers who think that yelling always equals feelings) and reserves breaking down for the most intense of revelations, making it all the more affecting."
https://seoulbeats.com/2021/08/the-devil-judge-ep-1-8-a-wickedly-good-start-on-nearly-all-fronts/

We don't know this yet. Drama will show Ga On's childhood flashbacks, maybe they'll explain something.

After episode 10, I still think the same. The drama postpones the moment of revealing Yo Han and Isaac's relationship shortly before Isaac's death. Everything we know about the fire we know from Yo Han's stories. We've also never actually seen the scene that Yo Han loved his brother. I can tell Isaac loved Yo Han. The other way around is not so obvious.

Every time Yo Han says people are bad, does he also talk about himself? That he is exactly like these people and would make the same choices. That he chose the money and sacrificed his family/brother. Because who would Yo Han be without Isaac's money? This sentence about losing something you have and you don't want to lose fits perfectly with his situation 10 years ago. 9 episodes and the drama still didn't convince me that Yo Han didn't kill Isaac. Ga On continues to check Yo Han's every sentence. He doesn't believe him, and he is on his side because there is currently no other option. Probably episode 12 or 14 will break the hearts of the viewers.

Yo Han has always lacked empathy for people. That's why his brother gave him books to read about law and punishment. Yo Han felt no guilt, and did not understand people (scene with a bird ) , hence the scene with the book that Isaac gave to Yo Han in his childhood, "Crime and Punishment" by Dostoyevsky. He has learned to pretend, but he doesn't care about the norms of ordinary people, their feelings .

If it had been an accident, the drama would have already shown the scene where the fire started. There is no such scene yet. It means that it was not an accident and the viewers will learn the truth in the second half of the drama. Elijah came from the other side of the church. We don't know how the fire looked like, because the drama showed it from Yo Han's perspective, and he could be lying about the details.

Spoilers only apply to future episodes. 8 episodes have already aired, so these are not spoilers.

My conclusions after 8 episodes
1. Yo Han killed his brother. He began to feel guilty after Isaac's death.
2. Yo Han doesn't want revenge, but power. He hates people.
3. Ga On knows that he was not the biological child of his parents. From episode 3 (Isaac's photo), he knows that he is a relative of the Kang family.
4. Ga On doesn't trust Yo Han, Jin Joo doesn't trust Sun Ah.
5. Sun Ah has evidence of Yo Han's crimes.

I doubt that Ga On is really on Yo Han's side. Yo Han doesn't care about people, justice, everything is a game for him. He is dangerous to the citizens and the country (Sun Ah and Yo Han corrupt people and destroy their morals in the name of "justice"). Ga On is like a secret agent on a mission without backup now. He knows it could end in death for him. He was preparing the entire 8th episode for this.

Ep.7 At the scene with the prison guards and at the funeral scene, I felt as if fascism was saying: hello.

From the beginning of the drama, I feel that the screenwriter shows how democracy collapses and totalitarianism is born.

I found an interesting post on why Ga On still lives with Yo Han and Elijah. This is not about logic, but about the feelings of three people who are actually very lonely. https://lethal-desires.tumblr.com/post/657155776631226368/lets-eat-like-normal-people-it-is-so

All the actors portray the characters the way the writer imagined it. These aren't meant to be one-dimensional characters. Sun Ah has a "pure heart like a child" and at the same time is an evil person.
eng sub https://www.youtube.com/watch?v=mzLqulK64tg

We don't know yet. There are 12 episodes left to the end of the drama. Gaon is going to be shown as a child and as a teenager, so maybe these flashbacks will explain if there is a connection between him and Isaac.

This is nothing new in the dramaland. Twenty years ago, dramas of this type were already being made. Que Sera Sera (2007), What Happened in Bali (2004), Discovery of Romance (2014), I need romance (2011).

"Writer Moon had been telling me that since he covered stories about good judges in Ms. Hammurabi, he wants to portray an evil judge, acting like a Batman or Joker, set in a fictional world. And he finally made it into a series."
Director Choi Jung-gyu, whose work includes the MBC mystery series "Children of Nobody," noted that the series questions the growing popularity of shows about a dark hero, such as recently wrapped "Taxi Driver" and "Vincenzo."
"Most dark hero series have action and are about fighting bad with bad. But with this series, the writer is making us think, 'Why are people crazy about dark heroes," he said. "The central theme which will be laid out through Ji's character is the biggest difference between our drama and previous series."
Ji said that he had a hard time studying the role at first. "I had trouble understanding the character… (at first) I thought of the character as a good person who embraces evil. But he is just evil," he said. "Depending on the perspective, the evil character wasn't just fascinating but was depressing and agonizing."
https://www.koreatimes.co.kr/www/art/2021/07/688_311636.html

https://www.soompi.com/article/1451068wpp/got7s-jinyoung-officially-signs-with-bh-entertainment

"Jan 28, 2021
GOT7’s Jinyoung has joined BH Entertainment!
On January 28, BH Entertainment announced through an official press release that they had signed an exclusive contract with Jinyoung.
A source from the agency stated, "Through BH Entertainment's system, we will provide both material and emotional support for Jinyoung's diverse career as an actor and musician."

He is still part of Got7. They plan to keep releasing albums together, despite their solo careers.

"About his character Kang Yo Han, the titular “devil judge,” Ji Sung said, “He’s not a nice character like in other dramas. He’s a judge who uses evil to combat evil. It reminds me of Goethe’s tragedy ‘Faust.’ I wanted to portray him as a character whose kindness takes strength from evil, but the writer told me, ‘You’ve got it all wrong. You’re not Faust, but rather Faust’s tempter, Mephistopheles.’ I was shocked by that revelation.”
Asked about the alternate universe setting, Kim Min Jung said, “It wasn’t that difficult. I didn’t really feel that it was an alternate universe. The drama shows incidents that go beyond our current situation, but it’s not that different from reality. It’s not like it’s set 100 years in the future.” Jinyoung said, “The director told us to focus on each situation more than the overall world. Rather than a dystopian world, it’s more focused on the situations that the characters are going through. Since it’s a universe where people are living, the characters feel the same emotions. I also got a lot of help from others. It was fun to film.”
Kim Min Jung plays Jung Sun Ah, the executive director of a social responsibility foundation and Kang Yo Han’s nemesis. “If I have to categorize her, I’d say she’s closer to evil than good,” she said. “But I think that it wouldn’t be fair to label her as just a ‘villainess.’ She’s a woman who has the charms of a femme fatale but also has a kind of pure-heartedness about her.”
Jinyoung plays Kim Ga On, an associate judge to head judge Kang Yo Han, and Park Gyu Young plays Yoon Soo Hyun, Kim Ga On’s childhood friend who is now a police detective. Park Gyu Young said, “Soo Hyun appears very brave and strong and tough and cool, but a lot of her actions draw strength from Ga On. She spent some of the most beautiful moments in her life with Ga On, and she wants to protect that. In real life, I get a lot of good energy from Jinyoung.”
https://www.soompi.com/article/1477513wpp/ji-sung-talks-about-filming-at-the-same-time-as-wife-lee-bo-young-working-with-kim-min-jung-and-got7s-jinyoung-in-the-devil-judge-and-more

https://www.soompi.com/article/1477732wpp/the-devil-judge-writer-former-judge-explains-why-ji-sung-and-got7s-jinyoung-are-perfect-for-their-roles