Sakamoto Days episode 9, titled "All Aboard", concludes the Lab arc, focusing on the aftermath of the confrontation and introducing a new antagonist. Shin and Heisuke team up to defeat the invisible Seba, while Sakamoto engages in a fierce battle with the powerful Kashima. The episode also features a brief but impactful encounter with Slur, the mastermind behind the Lab's takeover, and sees Sakamoto and Shin working together to evacuate the lab before it self-destructs.
