After nearly seven years on air and more than a hundred episodes, the anime "Senku's Journey" is set to end its story in just three episodes. The final arc will see Senku, Stanley and Kohaku travel to the Moon to confront the mysterious Why‑Man, the alleged creator of the Medusa devices that petrified humanity for millennia.

June 25, 2026 Marks the Series' Final Broadcast

According to the Crunchyroll Spring 2026 lineup, the series' last episode is scheduled for June 25, 2026. This tight three‑episode run will compress the climax,the lunar battle, and the resolution of dozens of character arcs into a single week of streaming.

Why‑Man: The Enigmatic Antagonist Behind the Medusa Devices

The report notes that Why‑Man is believed to be responsible for the creation of the Medusa devices that turned humans to stone over 3,700 years ago.. Fans have long speculated about his motives, and the upcoming confrontation promises to finally reveal his origins and his connection to the series' core mystery.

From Medieval‑Era Kingdom to Moon‑Landing Rocket

As the source explains, the show’s premise blends a future world with a medieval aesthetc, focusing on rediscovering real‑world scientific breakthroughs. Early milestones like Senku’s revival fluid—nitric acid mixed with alcohol—have led to the latest achievement: a rocket capable of reaching the Moon, a technological leap that underpins the final arc.

Potential Rush: Three Episodes to Resolve a Decade‑Long Plot

The article warns that condensing the climax into three episodes may feel rushed, especially as the series must tie up long‑running storylines while delivering a satisfying showdown. Viewers will be watching closely to see if the narrative can maintain its usual surprise factor without sacrificing depth.

Unanswered Mystery: Where Did the Petrification Begin?

One specific question that remains is the exact origin point of humanity’s petrification, a plot thread that has lingered since the series’ debut in July 2019. The source states that the revelation could arrive as early as the next episode , but it is still unclear how the writers will integrate this answer into the compressed finale.