The opening episode of Sins of Kujo begins with Kujo's voiceover, narrating that the sole person a lawyer can protect is their client, regardless of whether they are a morally questionable individual. Colleagues, reporters, and victims alike criticize Kujo for defending those deemed as "bad guys" and helping them emerge victorious in their trials.
With the assistance of his colleague, Yakushimae, Karasuma secures a position at the Kujo Law Office. However, the address leads him through slums, shadowy areas, and cramped alleys. Kujo himself resides on the roof and cooks using a portable burner, which surprises Karasuma given his background as a top graduate from Tokyo University and a previous stint at one of the Big Four - the Higashimura Yuhi Law firm. Both men deflect when asked about their motivations, avoiding direct answers.
The episode cuts to Mibu, a gruff and no-nonsense mechanic, meeting with the jovial Morita. Morita has been involved in a hit-and-run accident and seeks Mibu's help. Mibu, well-versed in evading the law, calls Kujo for assistance.
Kujo eagerly takes the case and as he prepares, we finally get a glimpse of the office - an old nightclub filled with chaotic files. While Kujo deals with Morita, he assigns Karasuma to kitchen duty. Like Mibu, Kujo easily sees through Morita's drunken state and distraction by his phone game while driving. In fact, Kujo muses that it would be better if the victim were dead so there could be no testimony against Morita. He devises a strategy where Morita should hide his phone, throw away his bar receipts, sweat out the alcohol, turn himself in, and give a vague confession. Given his "remorse," the police may release him in 20 days. Mibu is impressed by this plan while Karasuma is disgusted by it.
The episode shifts to the operation on little Ryota Minegishi, who survives but loses his left leg. His father, Masato, dies instantly. Morita, Karasuma, and Kujo are driving to a sauna when the lawyers begin bickering over establishments claiming to be the "best" or "number one." Karasuma is uptight and follows rules to the point where everything needs to be clearly defined. Kujo playfully teases him until an annoyed Morita tells them to stop. Kujo calmly tells him to let him do his job or face 20 years in jail.
This opening episode of Sins of Kujo establishes the complex world of law and morality that the characters will navigate throughout the series. With its sharp wit and dark humor, it promises to be a thrilling ride for viewers eager to see how Kujo and his team will defend their clients and challenge the status quo.
Later, Karasuma meets Yakushimae for dinner, and we learn that her organization helps former felons reintegrate into society and find work instead of committing more crimes. She wonders why he wants to work for Kujo. He claims he wants to know if Kujo is a good lawyer or bad. She believes that all good lawyers are bad. In the same breath, she also reveals that Kujo has a daughter and, after his divorce, he gave everything to his family and even kept his wife's surname.
As for Morita, the police confession went well. The victims are indeed the two Minegishis. Masato suffered from depression and was on leave from work when he picked up his son from daycare. From the dashcams, his cycle was already on the ground but he wasn't bleeding; only his son was when Morita collided into them. Medical records show that Masato had a heart condition, and Kujo believes he was dead from a heart attack before Morita even hit him. This means Morita can get away free of charge. But Karasuma is upset as Morita should anyway pay for drinking and playing on his phone while driving. Kujo agrees he is a scumbag but that is irrelevant to their case.
At the hearing, Morita gets a suspended sentence, which means he won't go to prison. Karasuma still thinks that what they did was heartless. He points out that if they had defended the family, they could have got 105 million yen as rightful compensation. Kujo advises him to keep his moral thinking separate; to hurt the other side is a burden a lawyer must bear. However, Karasuma goes to visit the Minegishis and finds Yakushimae already talking to the mother. Yakushimae suggests filing a lawsuit against the insurance company for the meager 40 million settlement. While leaving, she tells Karasuma that she has done as Kujo asked. His mentor will be taking up the case.
A surprised Karasuma confronts Kujo and wonders why he didn't just refuse Morita in the first place. In exchange, Kujo asks why Karasuma became a lawyer. Eighteen years ago, a defendant killed someone because he wanted the death penalty. It confused Karasuma. However, law is the only thing he understands, which is why he wants to use it to understand the meaning of life. A flashback shows that both Karasuma and Kujo were sitting next to each other at the trial. Karasuma finally confesses that he wants to work for Kujo because he wants to understand him.
Elsewhere, a bunch of drug dealers order a kid to deliver drugs. On his way, the kid is surrounded by cops. Kujo shows up, filming them for harassing a kid and illegal search and seizure. The cops ask who he is, and Kujo states that he is a good lawyer but a bad person.
