High school student Haru Yoshioka is bored with the monotony of life. One day, she saves Prince Lune of the Cat Kingdom from being run over by a truck. As a token of gratitude, the Cat King sends her "presents" and invites her to the Cat Kingdom to become Lune's wife. Haru's inability to properly communicate with the cats leads to the misunderstanding that she has accepted the proposal.

As Haru ponders on ways to escape the predicament, a mysterious voice instructs her to search for the Cat Bureau. However, not long after she finally arrives at the bureau, a horde of cats swarms in and forcibly takes her to the Cat Kingdom, along with a member of the Cat Bureau. Concerned for their safety, owner of the Cat Bureau, Baron Humbert von Gikkingen, follows close behind.

The more Haru immerses herself in the activities of the Cat Kingdom, the more cat-like she becomes. To her dismay, she soon learns that, unless she can find her true self, she may become a cat permanently. Haru's adventures in the world of cats lead her down a path to self-discovery, allowing her to return as a more confident person.

When a life ends, its soul departs to its final resting place known as the Soul Society. However, if a soul is left to wander in the human world for too long, it ends up turning into a corrupted "Hollow" that feeds on other souls. In such cases, spirits called "Soul Reapers" are needed to eliminate the Hollows and guide the lost souls to the Soul Society.

Ichigo Kurosaki and Rukia Kuchiki are two Soul Reapers who are used to dealing with Hollows that appear in Karakura Town. But when they encounter the hostile "Blanks"—souls devoid of memories and immune to the "soul burial" used by Reapers—they are thrown for a loop. Senna, a fellow Reaper that neither Ichigo or Rukia are familiar with, comes to their rescue and manages to fend off the Blanks. The mystery deepens when a mirage of the human world suddenly appears over Soul Society. What could be the reason behind the strange phenomena, and how is it connected to Senna, who avoids any questions about her identity?

[Written by MAL Rewrite]

Reeling from her recent breakup, Momo Ayase, a popular high schooler, shows kindness to her socially awkward schoolmate, Ken Takakura, by standing up to his bullies. Ken misunderstands her intentions, believing he has made a new friend who shares his obsession with aliens and UFOs. However, Momo's own eccentric occult beliefs lie in the supernatural realm; she thinks aliens do not exist. A rivalry quickly brews as each becomes determined to prove the other wrong. Despite their initial clash over their opposing beliefs, Momo and Ken form an unexpected but intimate friendship, a bond forged in a series of supernatural battles and bizarre encounters with urban legends and paranormal entities. As both develop unique superhuman abilities, they learn to supplement each other's weaknesses, leading them to wonder if their newfound partnership may be about more than just survival.

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.