If he sees underwear, humanity will be destroyed!? An original anime series from the noitaminA block, Punch Line centers on Yuuta Iridatsu, a high school student, with a peculiar habit. When he sees a girl's panties, he gets so excited he faints! After a certain incident with a ghost cat, his soul gets separated from his body. Using his special powers, Yuuta watches the daily lives of the inhabitants of an apartment and sometimes plays tricks on them. Eventually, Yuuta decides to unlock the secrets to why Earth will be destroyed and tries to save it!