Go! Go! Loser Ranger! manga volume 9 features story and art by Negi Haruba, the creator of The Quintessential Quintuplets.

The Green Squadron has defeated the boss monster Magatia. In the process, the Green Keeper's identity was revealed to be…the mysterious informant Chidori! D has now set his sights on a new target and soon receives an opportunity to assassinate him by teaming up with Suzukiri. However, after tailing Chidori all the way to his home, only to find a happy family waiting there, will D be able to maintain his resolve?