Keiichi Maebara has just moved to the quiet little village of Hinamizawa in the summer of 1983, and quickly becomes inseparable friends with schoolmates Rena Ryuuguu, Mion Sonozaki, Satoko Houjou, and Rika Furude. However, darkness lurks underneath the seemingly idyllic life they lead. As the village prepares for its annual festival, Keiichi learns about the local legends surrounding it. To his horror, he discovers that there have been several murders and disappearances in the village in the recent years, and that they all seem to be connected to the festival and the village's patron god, Oyashiro. Keiichi tries to ask his new friends about these incidents, but they are suspiciously silent and refuse to give him the answers he needs. As more and more bizarre events occur, he wonders just what else his friends might be keeping from him, and if he can even trust them at all. When madness and paranoia begin taking root in Keiichi's heart, he will stumble straight into the mysteries at work in Higurashi no Naku Koro ni, a story that is told across multiple arcs. [Written by MAL Rewrite]

When highly evolved AIs set out to eradicate mankind, the carnage that ensues fills the air with the stench of fresh blood and burning bodies. In a desperate bid to prevent the calamity from ever occurring, a scientist bets everything on a remnant from the past. Turning the clock back a hundred years, AIs are already an integral part of human society, programmed with specific missions meant to be carried out for their entire course of operation. Vivy, the first ever autonomous AI, is a songstress tasked with spreading happiness through her voice. In a theme park where she hardly ever gets a proper audience, she strives to pour her heart out into her performances, bound to repeat it day after day—that is, until an advanced AI from the future appears before her and enlists her help in stopping a devastating war a hundred years in the making. With no time to process the revelation that flips her world upside down, Vivy is catapulted into a century-long journey to avert the violent history yet to come. [Written by MAL Rewrite]

Life back on the cruise following the Island Special Examination is anything but smooth sailing. Almost immediately after their return, the first-year students of Tokyo Metropolitan Advanced Nurturing High School face yet another special exam, with both class and individual points on the line. In addition to the complicated ruleset, more issues arise in the form of Kakeru Ryuuen and Kei Karuizawa. Angered by the previous test's outcome, Ryuuen is dead set on outdoing every class in the new challenge using any means necessary. Meanwhile, Karuizawa, a crucial pillar of Class D, is close to crumbling under the pressure of her past. The stage is now set for Kiyotaka Ayanokouji to once again—using the full extent of his planning, foresight, and ruthless manipulation—steer Class D to victory as dangerously close enemy forces try to bring it down. [Written by MAL Rewrite]