Yuudai was close to finishing college, he was your ordinary college student although he was a coward when it came to fighting. He got scared of almost anything but that's why tamotsu (his best friend) always had his back even if he was blind. Yuudai usually never saw his father. Since he worked out of the country so it was just him, his mom, and his little sister. One day his mother gave him a book that yuudai's father left for him... And that's where our story begins