Akisame Koetsuji

Appearance
Despite his seemingly small physique, he is actually known for having his muscles built to perfection.

Background
Akisame met and defeated Shigure's father before coming to Ryōzanpaku. At the conclusion of the match Shigure's father falls to his death, leaving her an orphan. Akisame leaves her in the care of an old friend and after his old friend dies then he brings her to live at Ryōzanpaku.

Plot
After the DofD tournament, Akisame, Sakaki, and Kenichi go on a job as bodyguards for the Congress woman of Russia. It turns out that Alexander Gaider, The Fist of Destruction, as well as a master of SAMBO, and a member of the One Shadow Nine Fists was after the Congress woman because she had information on Yami. Akisame goes after him along with Kenichi as Sakaki was fighting 2 members of Yami who were of master class(though they only held him off for 2 minutes). Akisame and Kenichi run into Boris Ivanov, who was the disciple of Alexander Gaidar, though he could only hold Akisame off for just over 1 second. Kenichi holds off Boris and his group while Akisame fights Alexander. They both seemed to be evenly matched as Alexander and Akisame both use styles that are similar however Alexander's SAMBO is stronger offensively than Akisame's Jujutsu, however Akisame has far more experience than Alexander as well as a better body build. Akisame gives Kenichi a signal to get the Congress woman while he holds Alexander off, though he receives a blow as a result off doing this. They both somehow do their job and save her thanks to the last minute arrival of Sakaki. Both Alexander and Boris take their leave, failing their mission.

Akisame and Sakaki goes towards Russia's main government base. Akisame takes the mission on alone though and knocks out all the guards without arousing attention. Both he and Alexander once again began where they left off. Akisame first appeared to have the upperhand however Alexander quickly turns the tides by using his ultimate technique. However Akisame is still alive despite gaining great injures. Alexander soon reveals that he had copied Akisame special flow-like movement technique to his advantage. This forced Akisame to do the same and both are unable to even see each other. Alexander soon sees one of his soldier's still awake watching the battle and sees into his eyes to see Akisame and him in his reflection and was able to catch him. This was in vain as Akisame, has been used to being thrown countless times, counters Alexander's attack with just his ki and feet. Alexander soon counters Akisame attack with a countermeasure, "putting his life on the line", which opposes the Katsu-jin ken, which saves life. They both continue until Akisame knocks Alexander out for only 2 seconds, which by Alexander's point of view as a martial artist signifies his loss. Alexander is later taken into a secret maximum security prison known as "Big Lock", whose location and information are all unknown even to Yami.

Skills and Techniques
He has several hobbies and many unique abilities, including being a famous and legendary artisan, who has mastered calligraphy, painting, pottery, and sculpting. He often invents contraptions that serve as both training devices for Kenichi and power sources for the dojo including a treadmill generator. Because of this, in the manga Kenichi often runs home to him in times of problems screaming "DORAEMON!" (complete with dorayaki). He also owns an orthopedic clinic, and can reset and fix bones with ease. Akisame is also capable of speaking fluently in Russian and can even write Russian symbols well even when driving a motorcycle at high speeds.