JACK CAPER (ジャックケイパー) will disband on February 4th.

The band posted their announcement on Twitter, as well as their OHP. Here is the original message and a machine translated version*.

*(Please excuse any inaccuracies in this translation and use it as getting the general gist of what their message says)

"いつもジャックケイパーを応援いただき誠にありがとうございます。

この度、ジャックケイパーは2023年1月より開催されるLAST ONEMAN TOUR『最後の悪戯』ツアーファイナル、 2月4日(土)HOLIDAY SHINJUKU公演をもちまして解散することとなりました。

突然のご報告となり、ファンの皆様、関係者の皆様に深くお詫び申し上げます。

今後の活動、将来について悩みながら、何度もスタッフと話し合いを重ねた結果それぞれの道を歩んでいくことになりました。

これまでジャックケイパーをご支援くださった関係者の皆様、 そして何よりジャックケイパーを応援してくださった全ての悪戯っ娘の皆様に心より感謝申し上げます。

限られた時間にはなりますが、最後まで皆様に楽しんで頂けるよう努めてまいりますのでよろしくお願いいたします。"

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"Thank you for your continued support of Jack Caper.

We would like to announce that Jack Caper will be disbanding after the LAST ONEMAN TOUR "The Last Prank" tour final show at HOLIDAY SHINJUKU on February 4 (Sat.), 2023.

We deeply apologize to our fans and everyone concerned for this sudden announcement.

We have decided to go our separate ways after many discussions with our staff while worrying about our future activities and future.

We would like to thank all the people who have supported Jack Caper and, most of all, to all the fans who have supported Jack Caper. Above all, we would like to express our sincere gratitude to all the naughty girls who have supported Jack Caper.

We will try our best to make everyone enjoy the show until the end, even though the time is limited."

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You can also find member comments and further details on their website, linked in the sources section. As mentioned above, their last oneman will be held on February 4th at Holiday Shinjuku.