
Set deep in the JAA Jail Arc, the one-hundred and ninetieth chapter of Sakamoto Days follows Shin, Heisuke, and their companions through the prison confrontation. Its title, One in 10 to the negative forty-thousandth, evokes vanishingly slim odds.
This installment carries forward the JAA Jail Arc, the extended prison storyline in which the cast contends with an assault set inside a heavily guarded facility. Its pages center on Shin Asakura alongside Heisuke Mashimo and the fighters Atari, Hoshi, and Tenkyu, the same lineup shown on the chapter's color opening. The unusual title expresses an astronomically small probability, a figure that frames the long-shot stakes running through this stretch of the arc.
No characters make their first appearance in this chapter, and the featured group holds to Shin Asakura, Heisuke Mashimo, Atari, Hoshi, and Tenkyu. Taro Sakamoto and Kei Uzuki are each referenced through dialogue without stepping onto the page themselves. The chapter advances the arc while sitting within the twenty-first collected volume.
Known in Japanese as Ju no Yon Man Jobun no Ichi, the chapter spans nineteen pages and was published on November 18, 2024, in the fifty-first issue of that year. It occupies a spot between the chapters on either side of it in the JAA Jail Arc and belongs to Volume 21.

Naruto vs Luffy with the twist nobody asked for: Luffy tickled Hinata on date night, and she kind of liked it. We break down the whole fight and commit to a winner....

There are no women on Namek. That isn't an oversight, it's the biology. Why we handed Piccolo the one thing his own species rules out, and why it had to be trap soul....
Sakamoto Days Chapter 190 continues the JAA Jail Arc, following Shin Asakura, Heisuke Mashimo, Atari, Hoshi, and Tenkyu through the ongoing prison confrontation.
The title of Chapter 190, One in 10 to the negative forty-thousandth, expresses an astronomically small probability, reflecting the long-shot stakes the characters face during this stretch of the JAA Jail Arc.
The cover of Sakamoto Days Chapter 190 features Heisuke Mashimo, Shin Asakura, Atari, Hoshi, and Tenkyu, the same five characters who drive the chapter's events.
No new characters debut in Chapter 190. The chapter keeps its focus on the existing group of Shin Asakura, Heisuke Mashimo, Atari, Hoshi, and Tenkyu, with Taro Sakamoto and Kei Uzuki referenced only through dialogue.
Sakamoto Days Chapter 190 was published on November 18, 2024, in issue 51 of that year, and is collected in Volume 21 as part of the JAA Jail Arc.
Looking for more on Chapter 190? The Dragon Ball Wiki on Fandom has a dedicated page with community notes.
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