"So, you're the new transfer student, huh? What's your story, Kaito?"

Following the fight, the sadistic head guard Ishihara enters and violently beats Sakuragi as punishment.

The first chapter of Rainbow: Nisha Rokubou no Shichinin provides a gritty, brutal introduction to six teenagers sent to the corrupt Shonan Special Reformatory School in 1955. It establishes a dark post-WWII setting filled with abuse and introduces them to their protective cellmate, Rokurouta Sakuragi, who quickly earns their respect. This opening chapter sets the stage for a story focused on survival and the forged brotherhood among the seven, highlighting intense art and dire stakes.

Chapter 1 - "The Ordinary Days"

In the past, fan-led "scanlation" groups (short for scan and translation) were the primary way to read the series in English. These groups would scan the original Japanese volumes, translate the dialogue, and digitally edit the pages for release. Due to the series' length and complexity, these projects were often incomplete or slow-moving. However, thanks to these dedicated fan efforts, the entire series is now almost fully available to read online, typically hosted on manga-reading sites like the ones that host the "Nisha Scans" project.

From the moment they arrive, the six are treated as subhuman. The reformatory is not a place for rehabilitation; it's a den of corruption and sadism. Their first stop is a humiliating physical examination by the institution's physician, a man named . Sasaki is a pedophile who uses his position of authority to violate the new arrivals, an experience that immediately strips the boys of their dignity and introduces them to the horrific reality of their new home.