Shougeki Gouraigan(2013)

Only 100 days until the destruction of the earth. Is it okay for everyone to do it seriously...

Shougeki Gouraigan is an anime series set in Chou Shinkai, a realm parallel to the human world inhabited by powerful beings called Hikaribito. Among them exist criminals known as Kageribito, and dangerous creatures called Magii that blur the line between myth and reality. When Hikaribito Gou and his companion Navi's transport mission to exile a group of Kageribito goes catastrophically wrong, Gou faces an impossible deadline: he must assemble a team of five exceptional humans before 1000 soldiers arrive in just 100 days. The series blends action, fantasy, and high-stakes adventure as Gou races against time to prevent disaster and restore order between worlds.