theultimateanimefan

Gurren Lagann takes place in a fictional future where Earth is ruled by the Spiral King, Lordgenome, who forces mankind to live in isolated subterranean villages. These villages have no contact with the surface world or other villages, and are under constant threat of earthquakes.

Events in After Story take place immediately after the end of the first part, but extends into the next ten years, where Tomoya and Nagisa live together as a family. Life continues on for Tomoya.

Due to an untimely death of one of its members, a once happy and playful group of friends drifted and grew apart. Living their lives separately from each other, they secretly blame themselves for the horrible accident, and never got to move on even after years had passed.

Angel Beats! takes place in an afterlife high school, which acts as limbo for teenagers who have died and experienced traumas or hardships during their lifetime.