The details on SKE48's new single "Koi Ochi Flag" (February 3 release) have been unveiled. 

The title track of the group's 27th single will feature participation by all members for the very first time. Besides this song, it will include Matsui Jurina's solo song "Memories ~Itsu no Hi ka Aeru Made~" and "Change Your World," which is sung by Black Pearl, a unit produced by Matsui. She was also in charge of writing the lyrics for the two songs. 

You can check out the jacket covers, track list, and music video for "Koi Ochi Flag" below. 

===

[Limited Edition A]

[Limited Edition B]

[Limited Edition C]

[Regular Edition A]

[Regular Edition B]

[Regular Edition C]

[Theater Edition]

[Track List]

Type-A

CD

01. Koi Ochi Flag
02. Memories ~Itsu no Hi ka Aeru Made~ / Matsui Jurina
03. Koi Ochi Flag off vocal
04. Memories ~Itsu no Hi ka Aeru Made~ off vocal

DVD

01. Koi Ochi Flag Music Video
02. Memories ~Itsu no Hi ka Aeru Made~ (Matsui Jurina) Music Video
03. Matsui Jurina 12nen no Kiseki 2008-2020

Type-B

CD

01. Koi Ochi Flag
02. Change Your World / Black Pearl
03. Koi Ochi Flag off vocal
04. Change Your World off vocal

DVD

01. Koi Ochi Flag Music Video
02. Change Your World (Black Pearl) Music Video
03. Black Pearl "Change Your World"  Music Video Documentary&SKE48 Theater Debut 12th Anniversary Special LIVE

Type-C

CD

01. Koi Ochi Flag
02. Ano Koro no Locker / Passion For You Senbatsu
03. Koi Ochi Flag off vocal
04. Ano Koro no Locker off vocal

DVD

01. Koi Ochi Flag Music Video
02. Ano Koro no Locker (Passion For You Senbatsu) Music Video
03. SKE48 27th Single "Koi Ochi Flag" Music Video Documentary

Theater Edition

CD

01. Koi Ochi Flag
02. Oto no Wareta Chime / Coming Flavor
03. Koi Ochi Flag off vocal
04. Oto no Wareta Chime off vocal