Dansha-ISM / Ima Nanji? (断捨ISM/イマナンジ？; Minimalism / What Time is it?) is Tsubaki Factory's 7th single. It was released on September 30, 2020 in 4 editions: 2 regular and 2 limited. The first press of the regular editions included a random trading card of 10 kinds depending on the jacket (20 in total).
After its release, it became the last single to feature sub-leader Ogata Risa.
On August 10, 2020, Tsubaki Factory held a mini-live release event at the outdoor stage of the Toshimaen Amusement Park in Tokyo. This was Tsubaki Factory's first live event or concert as a group held with an audience since the Tsubaki Factory Live Tour 2020 Haru Tsubaki on February 22, 2020. In compliance with government policy due to the COVID-19 pandemic, cheering, crowding, standing, and closeness in the venue were prohibited, and wearing masks was required to enter.
On Twitter, Tsubaki Factory initiated a campaign titled "Ima Nanji? Itoshi no My Darling" (イマナンジ？愛しのMyダーリン) to promote the single. The official Tsubaki Factory Twitter account tweeted out a button, and by pressing it, fans could promote the single and get a short greeting video from a Tsubaki Factory member.
Starting on September 30, Tsubaki Factory held a shop campaign to promote the single. Fans who purchased the single at TSUTAYA RECORDS, HMV, TOWER RECORDS, WonderGOO, Amazon, or Rakuten Books would get a special sticker as a bonus. TOWER RECORDS, HMV, and TSUTAYA RECORDS also each held their own shop campaigns where fans who purchase the single in store would receive a poster as a bonus.
On October 8, 2020, it was announced all of Ogata Risa's individual online release events through WithLIVE for the single have been cancelled as a result of her suspension, and tickets will be refunded.