A time-manipulating artifact surfaces in post-Susanoo chaos, and suddenly the rules of this already fractured world break again. Takasugi and Katsura have to navigate a second impossible crisis when they thought the first one was finished. The show treats its historical setting and supernatural stakes with equal weight, never letting you catch your breath between personal vengeance and timeline collapse.

A legendary artifact thought destroyed resurfaces in Kyoto with catastrophic consequences. The chronometer, a device capable of bending time itself, tears through reality and begins rampaging with terrifying autonomy. Takasugi Shinsaku and Katsura Kogorou, seasoned warriors returning from paying respects at their mentor's grave, find themselves thrust into a race against temporal chaos. Their homecoming comes after the Susanoo Incident, which shook the capital and ended with the death of the masked shogun Mugensai. Now the ground quakes, the sky splits apart, and the device slips out of a tear in space-time, acting entirely by its own will. Expect a period action story built around a runaway power over time.