The anime follows a group of friends Giulia, Maria, Enrico, Lucio and Angelo during the Seveso disaster as they team up with a Japanese journalist Shirou Andou, and begin their own investigation of what's occurring (during the week long period of exposure when the ICMESA refused to notify citizens of the poison). As many animals are dying and people are getting sick. The children and Shirou discover deadly dioxin was released and inform Enrico's father, the town mayor, who evacuates all the citizens. Shirou continues investigating more and learns of the negligence of La Roche, a company who controls ICMESA. La Roche knew they were in violating of existing safety laws/protocols and destroyed evidence of their crimes. The children attend a press conference to ruin La Roche's reputation as the destroyed proof might not be enough in a court of law to punish them.

In the final match against the Kanagawa street racing team Sidewinder, Project D street racer Takumi Fujiwara is faced with a surprising challenger: Shinji Inui, a 17-year-old high school student. Beginning to drive at a very young age, Shinji is not only familiar with the mountain pass where the race is taking place, but he also drives a Toyota AE86—the same car model Takumi uses. Initially reluctant to participate due to a lack of enthusiasm, Shinji becomes motivated after witnessing the fiery battle between Keisuke Takahashi and Gou Houjou. Undefeated in his home course known as the Tsubaki Line, Shinji might prove to be Takumi's most formidable opponent yet.

Dog Pool. Worried about her weight, Karen Inukai decides to head to the pool and invites her friend Mike Nekotani to come along. Unbeknownst to the dog-phobic Nekotani, their destination is no regular swimming pool—it is a dog pool, where Inukai plans to play with her beloved Pochita. Unfortunately for the trio, Nekotani's fear of dogs soon puts their day of peaceful recreation in jeopardy. Gakuensai Date. The school festival is here, and Inukai has finally gotten a break from working at her class' dog cafe. She takes this opportunity to bring Pochita on a date, but the two immediately run into Inukai's self-proclaimed rival for Pochita's affection, Usagi Tsukishiro, who insists on tagging along. Their tour of the festival attractions soon brings them to a haunted house. When the horrors inside prove too much for both Inukai and Tsukishiro to handle, it is up to Pochita to calm the girls down.

During a Literature Club meeting, the four club members—along with their faculty adviser's niece—suddenly find themselves with supernatural powers. Now capable of fabricating black flames, resident chuunibyou Jurai Andou is the most ecstatic about their new abilities; unfortunately, his own is only for show and unable to accomplish anything of substance. Moreover, he is completely outclassed by those around him: fellow club member Tomoyo Kanzaki manipulates time, Jurai's childhood friend Hatoko Kushikawa wields control over the five elements, club president Sayumi Takanashi can repair both inanimate objects and living things, and their adviser's niece Chifuyu Himeki is able to create objects out of thin air. However, while the mystery of why they received these powers looms overhead, very little has changed for the Literature Club. The everyday lives of these five superpowered students continue on, albeit now tinged with the supernatural.