Throughout Shibuya, a series of murders dubbed the New Generation Madness gained widespread attention As these crimes gained infamy, they became a hot topic of discussion among the people of the area. Nonetheless, these New Gen murders do not capture the interest of Takumi Nishijou, a high school otaku who frequently experiences delusions and feels that he is constantly being watched. Having no concern for the real world, Takumi spends his time playing online games and watching anime. However, his ordinary life is disrupted when he receives a horrifying image of a man staked to a wall from a user named Shogun. After calming himself at an internet cafe, Takumi sees the exact same murder scene as the image portrayed happen right before his eyes, along with a pink-haired girl covered in blood calling out his name. Conflicted with the nature of reality, Takumi finds it difficult to judge where to place his trust as he gets caught up in the New Gen murders, believing that the murderer is out to get him.

One day, a small kitten named Chi is found by a young boy named Youhei and his mother. They decide to bring her back to their home to live with them despite their apartment's rules against keeping any pets. Chi, Youhei, and Youhei's parents cherish their time together as they make new friends, good memories, and have fun times together. These short adventures revolve around the daily life of Chi and her family, in addition to the many friends that they make along the way. No matter what trouble Chi ends up getting into, she knows that her family will always love her!

With the establishment of the Good For You Party's authoritarian regime, unhealthy foods and sugar have been banned. As a result, the bakery Smudger Moore's father owns is suffering financially from being unable to sell any of their typical sweet menu items. Smudger's friend Huntley Hunter is also frustrated by the prohibition, as he cannot keep a promise he made to his late father. Angered by the unjust world they live in, the two young boys set out to break the new social order—but the uphill battle they are faced with is a lot more than they bargained for.

Tomoya Okazaki and Nagisa Furukawa have graduated from high school, and together, they experience the emotional rollercoaster of growing up. Unable to decide on a course for his future, Tomoya learns the value of a strong work ethic and discovers the strength of Nagisa's support. Through the couple's dedication and unity of purpose, they push forward to confront their personal problems, deepen their old relationships, and create new bonds. Time also moves on in the Illusionary World. As the plains grow cold with the approach of winter, the Illusionary Girl and the Garbage Doll are presented with a difficult situation that reveals the World's true purpose.