Steel of the Celestial Shadows, Vol. 5 (manga)

The evil entity that has possessed Lord Haretake, the head of the Tsuchimikado clan, has a plan to unseal the sessho-seki stones and unleash calamity upon the land. As Konosuke hears the truth of the situation, he finally begins to realize what he’s fallen into, and what is at stake. With this new information, Konosuke, Aki, and the strange boy Bokutake set out to intercept Tsuki’s captors before they can reach the next stone. But when Takayama’s magic jar deposits Konosuke inside a gambling den, he finds himself betting with more than just his own life…