Gintama.

Summary

Weeks after the Shinsengumi leave Edo, the Yorozuya and Katsura's Jouishishi have been in hiding since then. A request from Imai Nobume leads to the two groups teaming up with the remnant Kiheitai plus Sakamoto and his Kaientai to save Kamui and Takasugi from the deadly clutches of Utsuro and his Harusame. Things become more complicated when Utsuro also sets his sights on Umibouzu, who is also after Kamui. All these groups will come together and fight to survive on the Yato homeworld, Rakuyou ( source: gintama wiki )