When a gate to another world suddenly opens on Earth, Mikado City is invaded by strange creatures known as "Neighbors," malicious beings impervious to traditional weaponry. In response to their arrival, an organization called the Border Defense Agency has been established to combat the Neighbor menace through special weapons called "Triggers." Even though several years have passed after the gate first opened, Neighbors are still a threat and members of Border remain on guard to ensure the safety of the planet. Despite this delicate situation, members-in-training, such as Osamu Mikumo, are not permitted to use their Triggers outside of headquarters. But when the mysterious new student in his class is dragged into a forbidden area by bullies, they are attacked by Neighbors, and Osamu has no choice but to do what he believes is right. Much to his surprise, however, the transfer student Yuuma Kuga makes short work of the aliens, revealing that he is a humanoid Neighbor in disguise. [Written by MAL Rewrite]

After growing up in Tokyo, high school student Jin Kaito moves to Nagoya where he meets Yatogame Monaka, a fellow student who puts her Nagoya dialect on full display. With her cat-like appearance and unvarnished Nagoya dialect, Yatogame won't open up to him at all. This popular local comedy is increasing the status of Nagoya through observation of the adorable Yatogame-chan! (Source: Crunchyroll)

Fifth season of .

Fourth Season of .