At the beginning of time, a mystical meteor came crashing down from outer space and scattered all over the world. A piece of it landed in the Eastern Continent. There were mysterious totems carved upon the meteor, and people gathered around it wanting to discover its usage. They discovered the Way, and established The Tradition. Several thousand years later, the fourteen years old orphan Chen Chang Shang left his master to cure his illness and change his fate. He brought a piece of marriage vow with him to the capital, thus began the journey of a rising hero. (Source: Binggo&Corp)

This is simply the OAV summing up the major events and battles of "Initial D 4th Stage" much like the "Initial D Battle Stage" original summed up the first 3 seasons. Additionally, has 2 extra battles from the manga that were not incorporated into the original 4th Stage. (Source: ANN)

Kurumi Mirai is in the first year of high school. She has enrolled in junior high section of the Redrun Magic School, the world's only facility for mages that approved by International Mage League and able to work under royal families when graduates, and she was always top of the class. However, when she applies for the high school section and took the examination to get into a mage training class "Ma-gumi (Mage Class)", she wasn't able to get in in spite having full scores and was top of the class for the whole three years. There are some students in the class next to her that takes that class. Among that there's someone she admires. How will Kurumi Mirai who has extraordinary brain but didn't get in to be a mage candidate try to overcome and grow up? What is the aim for Minami Suzuki, a loyal mage who suddenly appears to be the homeroom teacher? This is a relaxing story of her growth. (Source: MAL News)

Yachiyo Inugami, a cat-loving extrovert, and Suzu Nekoyama, a dog-loving introvert, are unexpectedly cast into a relationship on a day like any other. The pair find themselves drawn together through an inexplicable attraction of their opposite personalities. As they quickly begin to understand one another, Inugami's hardened resolve to gain Nekoyama's favor only leads to frenzied responses. Soon after their momentous union, the two begin to spend more time with one another, growing closer all the while. Their combined antics gain the attention of the mousy Mikine Nezu, a classmate of Inugami, and soon they join the "biology" club. There, they meet Ushikawa Ukiji, a passive, cow-like upperclassmen. Nezu and Nekoyama soon begin to build upon their relationship and a game of cat and mouse soon begins. Wild, explosive, and vibrant, Inugami-san to Nekoyama-san tells the comedic tale of two high school girls and their less-than-normal relationship. [Written by MAL Rewrite]