When he was little, Ryuuhei Oda witnessed the death of his caring older brother, along with a mysterious mark that was left near his body. N...

Thirty-six students find themselves and their school building suddenly adrift in a void-like dimension. When supernatural powers awaken in s...

In the year 2041, World War III has wiped out two-thirds of the human population, and in the newfound structure, the belief in any god or be...

As we enter the 21st century, the relationship between sports and technology is getting closer and closer. Sports products are enhanced by t...