Sakamoto Days - Episode 4

Episode 4 begins with Boiled and Obiguro at the Dandenkai Agency, while Lu tends to Shin's injured eye. The team interrogates the person responsible for Shin's poisoning—and under Lu's threat, he finally reveals details about his employer. During the interrogation, Shin explains that he and Taro are former members of the Japanese Association of Assassins (JAA), an organization that controls professional hitmen. Shortly after, Aoi and Hana join the group, but Shin hides the true motives of the perpetrator from Aoi.

As Taro and Lu accompany Aoi and Hana to a dining area, Shin assures the perpetrator that his poisonous weapons will be neutralized without killing him—allowing him to escape. Meanwhile, Boiled and Obiguro confront the perpetrator, known as Tatsu, and declare their intention to eliminate Taro.

The scene shifts to the Haunted House in Sugar Park, where a guide accompanies the group while Taro, Shin, and Lu protect Aoi and Hana from lurking assassins. A flashback to the Hit Man Training Center (JCC) reveals the deep tensions between Boiled and Taro, stemming from their shared past.

Chaos erupts when Lu opens a door, unleashing a horde of zombies. In the ensuing battle, Taro is thrown through a wall by Boiled, separating them. At the same time, Shin discovers the unconscious Aoi and Hana. Suddenly, Obiguro appears—accompanied by an army of fake zombies. He presents Lu with a brutal choice: strike every ten seconds or risk Shin dying under the threat of cruel mutilation.

Meanwhile, Taro and Boiled engage in a fierce battle. Taro recalls their shared training and vows to prove his skills—the prelude to a merciless duel.