
TV · 73 episodes · 23 min/ep · Toei Animation
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]

Narrator
Background

Hideyuki Tanaka
Japanese

Osamu Mikumo
Main

Yuuki Kaji
Japanese

Yuuma Kuga
Main

Tomo Muranaka
Japanese

Yuuichi Jin
Main

Yuuichi Nakamura
Japanese

Chika Amatori
Main

Nao Tamura
Japanese

Replica
Supporting

Hideyuki Tanaka
Japanese

Hyuse
Supporting

Nobunaga Shimazaki
Japanese

Shiori Usami
Supporting

Eri Nakao
Japanese

Masafumi Shinoda
Supporting

Takeshi Kusao
Japanese

Masamune Kido
Supporting

Takuya Kirimoto
Japanese

Jun Arashiyama
Supporting

Nobuhiko Okamoto
Japanese

Souya Kazama
Supporting

Hikaru Midorikawa
Japanese

Hiroshi Oonogi
Script (eps 54, 55, 60, 65, 68, 71)

Takeshi Mori
Storyboard (eps 8, 10, 18, 22, 28, 32, 34, 41, 43, 47, 50, 57)

Eikichi Takahashi
Animation Director (eps 30, 39)

Natsuko Takahashi
Script (eps 5, 9, 12, 15, 20, 24, 28, 34, 38, 42, 46, 51)

Kounosuke Uda
Episode Director (ep 38)

Kenji Kawai
Music

Shigeru Ueda
Episode Director (eps 2, 10, 18, 27, 37, 43, 53, 58, 71)

Noboru Koizumi
Animation Director (eps 7, 15, 23, 31, 38, 46, 54, 63, 73)

Mitsuru Hongou
Director (eps 1-48)

Mitsuru Hongou
Storyboard (eps 1, 5, 13, 27, 36, 46)