After two-month-old kitten Chibi-neko is abandoned by her former owners, she is found by 18-year-old Tokio. Although his mother is allergic to cats and has a great fear of them, she agrees to let him keep the kitten because she fears he is becoming too withdrawn after failing his university entrance exams. Chibi-neko soon falls in love with Tokio. In her own mind, Chibi-neko is a small human who speaks in human words, although people only ever seem to hear her meow, and she believes that all humans were once kittens like her. A stray cat tells Chibi-neko of a paradise called Cottonland, where dreams can come true.

After vanquishing another boss and stepping through the gates of the fifth floor, the misfit duo Kazuto "Kirito" Kirigaya and Asuna Yuuki are greeted with a beautiful landscape of crumbling ruins and catacombs steeped in mystery. This idyllic adventure is short-lived, however. Tensions between the Dragon’s Knights Brigade and the Aincrad Liberation Squad—the two leading guilds focused on clearing Sword Art Online—continue to rise and threaten the fragile stability of the frontline raiding group. Kirito and Asuna are forced to act quickly, making a desperate gamble and gathering a small number of allies for a dangerous mission. As a result, Asuna and Misumi "Mito" Tozawa must come to terms with their relationship after the near-tragedy that forced them apart on the first floor.

During summer break, Tetsuo asks Sakie to join him on patrol duty for the local summer festival, which both the demis and Himari and her friends go to. As each group decides to check out a nearby shrine, they get spooked by some strange occurrences, which turn out to be each other. As the next term begins, Tetsuo converses with an invisible woman named Matsuri.

The third season of Shen Lan Qi Yu Wushuang Zhu.