Eir Aoi Performs “MONSTER” for “Classroom of the Elite” Season 4 Opener

Singer-songwriter Eir Aoi is set to perform “MONSTER,” the opening theme for the highly anticipated fourth season of the anime Classroom of the Elite. This new season, titled “Classroom of the Elite 4th Season: Second Year, First Semester,” debuts on April 1.
Eir Aoi’s New Era with Lantis
The track “MONSTER” marks a significant milestone in Eir Aoi’s career under the music label Lantis. Fans can expect to purchase this single on April 22, available in three formats: Type A, Type B, and Type C. Each version will include the title track along with three additional songs.
Insight from Eir Aoi
In a recent statement, Eir Aoi shared her enthusiasm about contributing to the anime’s music. “I’m delighted to be singing the opening theme for Classroom of the Elite, a series loved by many,” she expressed. She also indicated her gratitude for this opportunity, emphasizing the song’s intense theme.
According to Aoi, “MONSTER” explores the perspective of the character Ayanokoji-kun, who is perceived as a “monster” by those around him. She aims to deliver a new facet of her musical style through a digital rock sound.
Eir Aoi at Hyper Japan Festival
Following the announcement of her new single, Eir Aoi has been confirmed as a headlining guest at the Hyper Japan Festival, a prominent British anime convention. Scheduled for July 25, this event will provide UK fans with a unique opportunity to experience her live performance.
A Legacy in Anisong
Eir Aoi has established herself as a key figure within the anisong genre since her debut in 2011. She gained recognition with her work on the anime Fate/Zero and has continued to perform for major franchises, including:
- Kill la Kill
- Sword Art Online (and its spin-off Sword Art Online: Gun Gale Online)
- Aldnoah Zero
- Mobile Suit Gundam AGE
With “MONSTER” and her upcoming performance at Hyper Japan, Eir Aoi continues to showcase her influential role in the anime music industry.




