Tomonari Sora Releases New Opening Theme Song ‘CAUTION’ for Rebroadcast of Anime Series ‘Assassination Classroom’, Alongside Music Video

TOMONARI SORA releases new opening theme song ‘CAUTION’ for rebroadcast of anime series ‘Assassination Classroom’, alongside music video

Japanese musician TOMONARI SORA, known in Japan as the “Reiwa Era pop killer”, released new song ‘CAUTION’ today, April 9.

TOMONARI SORA / ‘CAUTION’ download and streaming links:
https://tomonarisora.lnk.to/Caution

The song will be used as the new opening theme for the rebroadcast of the anime series ‘Assassination Classroom’, which will begin airing in Japan on Fuji TV from 01:45 JST on Friday, April 11.

SORA wrote the music and lyrics, as well as arranging and mixing the song and even creating the cover artwork. With an aggressive sound filled with speed and excitement, ‘CAUTION’ depicts the fleeting moments between childhood and adulthood, likening it to the cautionary yellow light on a set of traffic lights, and expresses the frustration and the wonder of everyday life that so quickly rushes by.

As you'd expect from SORA, this new song is packed with metaphor-filled wordplay and an addictive sense of rhythm.

SORA commented, “'Assassination Classroom' was actually my favorite Jump manga series when I was in elementary and middle school, so I was thrilled when I heard about this project. As a graduate of Class 3-E and a huge fan of Koro sensei, I am delighted to be able to contribute music for this anime series that is beloved all over the world!”

A music video for ‘CAUTION’ was also released today. It was produced by video creator Tsumugi, who made the lyric videos for SORA's previous tracks ‘ACTOR’ and ‘Bergamot’.

TOMONARI SORA / ‘CAUTION’ music video
https://youtu.be/IYM95mWnMXY

The anime series ‘Assassination Classroom’ is based on a hit manga that was originally serialized in Weekly Shonen Jump from 2012 to 2016. The manga has sold over 27 million copies and continues to captivate fans today. The anime adaptation was first broadcast on Fuji TV and other channels in Japan in January 2015, and reaches its 10th anniversary in 2025. To celebrate, a project titled Anime ‘Assassination Classroom’ 10th Anniversary Time has been launched, consisting of three main parts, which will be announced over time. The first of these is a yearlong rebroadcast of all 47 episodes of the anime series in Japan, starting in April 2025 on Fuji TV and other channels.

Comment from TOMONARI SORA
“TOMONARI SORA here. I'm in charge of the new opening theme song for the anime series ‘Assassination Classroom’. ‘Assassination Classroom’ was actually my favorite Jump manga series when I was in elementary and middle school, so I was thrilled when I heard about this project. As a graduate of Class 3-E and a huge fan of Koro Sensei, I am delighted to be able to contribute music for this anime series that is beloved all over the world!”

★ Release information

TOMONARI SORA ‘CAUTION’
April 9, 2025 digital release
* Opening theme song for rebroadcast of anime series ‘Assassination Classroom’
Download and streaming links: https://tomonarisora.lnk.to/Caution
Music video: https://youtu.be/IYM95mWnMXY

★ TOMONARI SORA profile
Known in Japan as the “Reiwa Era pop killer”, TOMONARI SORA is a new-generation singer-songwriter born in 2002. He struck the J-pop scene out of nowhere like a comet, with one song after another becoming viral hits.

SORA's catchy melodies, humorous sense of wordplay filled with mystery and poison, and use of Japanese imagery have created a buzz, while his January 2024 song ‘Demons Banquet’ crushed Japan's charts for the first half of 2024. His May 2024 follow-up release ‘Niramekko’ also became a viral hit.

As a child, SORA longed to create his very own land. Realizing that music allowed him to build a world of his own, where he could find respite from the difficulties of life, he began teaching himself to compose music while in fourth grade of elementary school.

Writing the lyrics and music for his songs as well as creating arrangements and even illustrations and music videos, SORA is a truly multitalented artist.

Official website: https://avex.jp/tomonarisora/
TikTok: https://www.TikTok.com/@tomonarisora
YouTube: https://www.YouTube.com/c/TomonariSora
X (Twitter): https://twitter.com/TomonariSora
Instagram: https://www.instagram.com/tomonarisora/

★ ‘Assassination Classroom’ 10th anniversary project
Anime ‘Assassination Classroom’ 10th Anniversary Time
Official website: https://ansatsu-anime.com/
X (Twitter): https://x.com/ansatsu_anime

First installment: Rebroadcast of all 47 episodes of the anime series ‘Assassination Classroom’ on Fuji TV and other channels in Japan from Friday, April 11

• Broadcast Information

The anime Assassination Classroom (all 47 episodes) will be rebroadcast!

Starting from Thursday, April 10, 2025, on Fuji TV and other channels.

Missed episodes will be available for one week after airing, starting at noon the next day, on TVer and FOD.

[Original manga]
‘Assassination Classroom’ by Yūsei Matsui (published by Shueisha Jump Comics)
Number of volumes: 21

©Yūsei Matsui／ SHUEISHA, ASSASSINATION CLASSROOM Committee2025
abbreviation:©Y.M／S,ACC25