Shin Garouden summary:

Maeda Mitsuyo, the greatest judoka, and grandmaster of Brazilian jiu-jitsu had a tiny problem. A no good punk has been beating the students of the Kodokan judo school. To catch him, he prepares a trap to ambush him in the middle of the night. That’s when he would meet the man that will go down in the past of history as the strongest man he fought. The ancestor of the fierce Bunshichi Tanba!!!The Meiji era, when the samurais were just a thing of the past, was the era when the strongest men thrived. Another strongest fighting legend is about to be written once again.