Back Street Girls (バックストリートガールズ, Bakku Sutorīto Gāruzu) is a Japanese manga series by Jasmine Gyuh. It has been serialized in Kodansha's seinen manga magazine Weekly Young Magazine since March 2015 and has been collected in ten tankōbon volumes. An anime adaptation called Back Street Girls: Gokudolls (Bakku Sutorīto Gāruzu: Gokudoruzu) by J.C.Staff started airing July 4, 2018. The manga has been licensed by Kodansha for digital release in English.
A group of 3 yakuza failed their boss for the last time. After messing up an important job, the boss gives them 2 choices: Honorably committing suicide, or go to Thailand to get a sex reassignment surgery in order to become "female" idols. After a gruesome year-long training to become idols, they successfully debut, with overwhelming popularity, much to their dismay. This is where their tragedy truly begins.