In a certain distant land, home to numerous intriguing towns and people, many wondrous sights can be found. Traveler Tortov Roddle encounters a curious patch of red berries and after sampling one, happily indulges himself with more. He soon realizes, however, that this delectable fruit has considerable hallucinogenic effects and finds himself partaking in his greatest trip of all. Elsewhere, a little girl finds brief yet fantastical escapes from her everyday life. In yet another city, residents are baffled when giant black apples begin raining down from the sky, but find that they may have use for them. A journey into the extraordinary, Aru Tabibito no Nikki Specials explores the surreal occurrences of its setting, and how the land's inhabitants react to certain dreamlike experiences they encounter.

Tortov Roddle is a man of few words on a journey through a calm and obscure new land, interacting with its inhabitants along the way. As he rides on his long-legged pig through the desert from town to town, he observes the interesting and quirky customs of the locals and reminisces about his past.

Eikichi Onizuka and Ryuji Danma are members of infamous biker duo, the Oni Baku. When not out riding around, they can be found in school, trying to pick up young women. This is the story of the young Onizuka, who would later become the greatest teacher in Japan, and his partner Ryuji in their quest to lose their virginity and reach maturity. They are widely feared bosozoku, and are known for their tenacity and viciousness in a fight. However, this lifestyle does not exactly endear them to the opposite gender, so they decide to change their ways. However, this is easier said than done.

Once, vampires and humans lived in harmony. Now, a young girl and a vampire queen will search for that Paradise once again. In the divided world of the future, two girls want to do the forbidden: the human wants to play the violin, and the vampire wants to see a wider world.