The plight of Class 3E's attempt to save the world from a super killer alien teacher will soon return to TV.

Unfortunately, they'll still have to figure out how to conquer his invincible mode. 

Today, the official website for "Assassination Classroom" season two revealed a new key visual for the upcoming new episodes that will premiere on Jan. 7. In addition to the new key visual, it was also reported that the new season will contain 25 episodes.

For those not familiar with the series, it was originally a manga by Yusei Matsui. The "Assassination Classroom" manga has been very successful since its debut in 2013, including selling over a million copies since its release, and being nominated for the critical 2015 "Tenzuka Osamu Cultural Prize."

Since its manga success, "Assassination Classroom" has been adapted into an anime series, a 3DS game, and two live-action movies. A new 3DS game was recently announced by Bandai Namco Entertainment, and will be released on March 24, 2016.

Funimation, who is streaming the "Assassination Classroom" anime series outside of Japan,describes the story of "Assassination Classroom" as follows:

"Forget about homework and pop quizzes. The students of Class 3E have a far more important assignment: kill their teacher before the end of the year! A tentacle-d sensei that moves at Mach 20 is out to conquer the classroom after destroying seventy percent of the moon."

It goes on:

"In addition to reading, writing, and arithmetic, the murderous monster behind the lectern will teach his students everything he knows about the assassination game. Should some eager beaver prove to be a quick study in killing, he or she will save Earth from extinction - and collect a hefty reward."