"Shuraba" (修羅場, "Scene of Carnage"), also known by its English title "The Rat's-Nest"[1] is the third single by the Japanese rock band Tokyo Jihen, led by musician Ringo Sheena, released on November 2, 2005.

It was the band's first release with their new members Ukigumo and Ichiyo Izawa, who replaced Mikio Hirama and Masayuki Hiizumi.

Tokyo Jihen was first formed in 2003, after Ringo Sheena decided on members for her backing band for her Sugoroku Ecstasy tour.

[3][4] The group released two singles in September and October 2004, "Gunjō Biyori" and "Sōnan", both of which were certified gold by the RIAJ.

She had known pianist Ichiyo Izawa since attending a solo concert of his in early 2004, though the pair had not talked together often since meeting.

[9] Sheena met Ukigumo through her brother Junpei Shiina, and the pair first collaborated in 2002 as a part of Yokoshima, a band formed to cover the Toto song "Georgy Porgy".

[9][11] Sheena liked Ukigumo's guitar playing so much that she left it in for the studio versions of "Meisai" and "Ishiki", and collaborated on the bonus track "Ichijiku no Hana", which was written by him.

[9] Working with Izawa and Ukigumo was the first time in Sheena's career where she clashed on opinions for what was best musically for the songs.

[9] For the B-side "Koi wa Maboroshi (Get It Up for Love)", Sheena asked Ukigumo to perform the guitar in the style of Southern All Stars' 1983 song "Sonna Hiroshi ni Damasare".

It was meant to be the final song on Adult, however Sheena felt that Izawa's composition "Tegami" suited it much better, after getting used to his style.

The Listenmusic reviewer Yoshiki Aoyuki called the song a masterpiece, praising the "varied rhythm changing into a fat hip-hop beat" caused by the mix of processed and live drums, Kameda's bass guitar work and the "stylish keyboards and classical guitar".

[23] CDJournal reviewers called it "a funky pop song that fully realises [Sheena's] unwavering nature as a melody maker".