After losing his parents in a freak accident, high schooler Tatsumi Tatsunami is doing his best just to get by and provide for his younger siblings. But his life gets a whole lot more complicated when he’s attacked by aliens! Saved by a mysterious man named Sharaku who belongs to the even more mysterious organization called Foreign Affairs 5, Tatsumi will have an important decision to make if he wants to figure out why these aliens are after his life!
Now that Tatsumi and Sharaku have defeated the assassin Maumoki, Tatsumi is finally ready to start training as a Foreign Affairs 5 recruit! His first mission? To brave a sweltering day in the sun while hunting for an extraterrestrial nest in a rice paddy. But when the mission takes an unexpected turn, Tatsumi might just learn that things aren’t always what they seem…
Sharaku organizes a meeting with the team leaders of Foreign Affairs 5 in order to take down the criminal organization A3. The meeting is fraught with red tape, but Tatsumi’s memories may just hold the key they need to move forward. With an all-out war between Foreign Affairs 5 and A3 now looming, Foreign Affairs 5 will find themselves facing their most dangerous extraterrestrial threat yet in this epic conclusion!