While the other demons had each chosen a different form of resistance or pleading in their final moments, Enmu simply looked at Muzan. His expression carried something that could not quite be called fear. There was a faint smile and a colour in his face that suggested something considerably more complicated than fear.
"That is," Takeru said, his expression going strange, "not a normal reaction to being in a room where everyone around you is being killed."
Enmu, when questioned, did not argue. He expressed no grievance. His devotion to Muzan appeared to be entirely genuine and entirely independent of whether Muzan intended to kill him. If Muzan chose to end him, Enmu would consider it an honour.
Takeru sat with this for a moment.
"So you can feel this way about a boss like that. This Lower Rank One is a specific kind of person."
He thought about it from the angle of the Hunter x Hunter Chimera Ant arc. The relationship between the Ant King and the ants who served him carried a similar quality of devotion that had nothing to do with whether the devotion was deserved or returned.
Perhaps demon-to-Muzan relationships operated on a comparable mechanism, the blood connection producing something that looked like loyalty but functioned more like compulsion.
In the story, Enmu's performance of absolute devotion and genuine admiration was enough. Muzan injected his blood directly into Lower Rank One and spared his life.
"Pleased the superior, received a promotion and a reward. How completely realistic."
Takeru understood the logic immediately. The King of Demons, having existed for longer than recorded memory, was apparently susceptible to straightforward flattery. The transaction was entirely transparent and had worked perfectly.
"Go. Kill the Demon Slayer wearing the Hanafuda earrings."
Tanjiro. Takeru recognized the description without needing to think about it.
The preliminary setup for the Demon Slayer: Kimetsu no Yaiba Mugen Train Arc was now established.
The episode returned to the daily life scenes that Takeru had the least patience for. Tanjiro's recovery completing. A new mission dispatched from headquarters. The three protagonists preparing to depart.
They moved along a road under a night sky and arrived at a train station.
Stirring music accompanied a train moving through open countryside under the night sky, heading toward the station where Tanjiro and his two companions were waiting.
Above the locomotive, standing on the roof as the train pulled into the station, was Enmu. His mission from Muzan was already in hand. He looked at the approaching platform with an expression of quiet anticipation.
The music reached its peak and cut to silence.
The ending theme for this episode of Demon Slayer: Kimetsu no Yaiba did not play. Instead the broadcast shifted directly into a new preview for the Mugen Train Arc theatrical film.
It did not reveal specific plot details. What it showed was a sequence of fight scenes produced at a visual level that made the already exceptional television series look like a foundation rather than a ceiling.
Enmu appeared. The three main protagonists appeared. The Flame Hashira appeared. And at the very end of the preview, a man opened his eyes. The words Upper Rank Three surfaced in his irises.
The preview ended.
Takeru sat with the energy of it for a moment.
The structure of what the film would cover was not a mystery. The Mugen Train Arc would place the protagonist group and the Flame Hashira against Lower Rank One and Upper Rank Three. Anyone watching the preview could follow that logic without difficulty.
Knowing the shape of it in advance did nothing to reduce what he was feeling. The visual quality and the music had done the work independently of plot information. He was going to the cinema because the preview alone had been worth watching twice.
"Just for the image quality alone, I would go to the cinema," Takeru said.
After the season one finale aired, Demon Slayer held the trending lists across Japan's internet through the night. The fans were still going well past midnight.
"Muzan is difficult to explain. He does not seem to lack intelligence, so why does his decision-making look like this?"
"Simple arrogance. If he was going to execute the Lower Ranks regardless, the rational alternative was to send them against the Hashira first. Wins benefit him. Losses cost him nothing he was not already planning to discard. Executing them himself directly achieves the worst possible outcome from his own position."
"The villain here is genuinely weak. Boros and Garou from One-Punch Man, Viktor from Arcane, the Ant King from Hunter x Hunter. The character depth in those antagonists is not in the same category as Muzan."
"For this specific type of anime, do not look for Shirogane-sensei to build Muzan into a complex figure. He cannot be redeemed, so he was not built to be redeemed. He is a pure evil antagonist. Expecting him to function as something else is expecting the wrong thing."
"He panicked when Tanjiro recognized him on their first encounter and exposed what he was. He is now destabilized because his Lower Rank subordinates were killed. I have some sympathy for the character's situation, if not for the character."
"I actually prefer this. The Ant King made me grieve when he died. I do not want to grieve for Muzan. Let him be what he is so I can watch his ending with some satisfaction."
"The Mugen Train Arc structure is clear. Lower Rank One and Upper Rank Three. Judging from the series' established pattern, this film will be compact and dense with fighting from beginning to end."
"Shirogane-sensei's two previous manga adaptations, Five Centimeters Per Second and Tonight, both performed around three to four hundred million yen at the box office. Demon Slayer is in an entirely different position in terms of popularity. Everyone should push for this to be the highest-grossing film of the summer."
"Summer box office champion in Japan requires at least one to two billion yen historically. The competition this summer is significant and Demon Slayer has only been a major presence for half a year. That is an ambitious target."
"Are the seven percent viewership ratings not real? Are the twenty million weekly manga readers not real? Why is ambition the wrong response to those numbers?"
"Fan count and purchasing behaviour are separate variables. Some of the most followed celebrity acts in Japan have tens of millions of fans. Their film projects sometimes struggle to reach two or three hundred million at the box office. The final number for Demon Slayer is genuinely hard to predict with confidence."
"The film is releasing across dozens of countries and regions simultaneously, with the international release following the domestic one by approximately two weeks. The goal at minimum should be a top-ranked position in the domestic animation film history."
"I am confident in this film. That is where I am."
After the television season concluded, the attention of the Demon Slayer audience had shifted entirely to the theatrical release.
But Rei's two previous theatrical adaptations, Five Centimeters Per Second and Tonight, had each produced box office results in the three to four hundred million yen range.
Those numbers were the existing reference point for what his work was capable of generating in cinemas, and they were creating a ceiling in the imagination of fans who were trying to project the Mugen Train Arc's potential. The discussions were cautious in a way that the television viewership discussions had not been.
The theatrical model itself was also unprecedented. A television anime reaching its seasonal peak and then transitioning the continuation directly into a theatrical release had not been done in Japan before at this scale.
The OVA and Blu-ray model existed and was familiar. What Rei was doing was different, and no reliable precedent existed to predict how many of the television audience would follow the story into cinemas.
The fans argued about it on every available platform.
The industry professionals who had been monitoring Demon Slayer for the past several months waited with their own questions unresolved.
Time slipped from June into July.