Hayakuwa is a well muscled individual with a long face, a sharp nose and long light-coloured hair, which he wears in a single long, crescent-shaped bang that covers the right side of his face. However, his most distinguishing feature are his completely black sclera.
When announcing the no-holds-barred Rokushin Kaikan tournament to the top members of Rokushin Kaikan, Ao Kenji mentioned that he planned to incentivise Ikeuchi to participate with the presence of someone Ikeuchi had a grudge against. This fighter was revealed to be Hayakuwa when he suddenly met Ikeuchi and declared his entry into the Rokushin Kaikan tournament. This was ultimately what spurred Ikeuchi himself to enter.
After this, Hayakuwa entered the tournament, being placed in C block.
Powers and Abilities
Hayakuwa is a powerful and intimidating opponent. Ikeuchi Mentaro considers him the strongest Nak Muay he knows and also possibly the strongest man in general. Hayakuwa's elbow strikes in particular were strong enough to rip Oshio Gaku's face open and nearly cleave his hand in half.
|Meido Kaikan||Koyasu Shingoro|
|Nakachi Style||Igo Nagare|
|Nito Style||Futoyama Baitatsu • Ikeuchi Mentaro|
|Rokushin Kaikan||Akanishi Tsutomu • Ao Kenji • Ando Rei • Kaibara Dozan • Kameda Yasushi • Motoyama Jin • Muto Shinya • Nanbu Ryuta • Narushima Joji • Ohta Masao • Oshio Gaku • Shido Hishiyasu • Takayama Riki • Tatsuyoshi Katsuya • Totsugawa Keiji • Wajima Ken'ichi • Yamada Kentaro • Yanagi Roken|
|Other Combat Forms|
|Hatsumi-style Aikido||Hatsumi Koichiro • Hatsumi Ryozo|
|Japanese Kenpo||Horita Masafumi|
|Muay Thai||Hayakuwa Samato|
|Paolin Kung-Fu||Zong Longshen|
|Pro Wrestling||Jose Kanzaki • Kurachi Karugo|
|Shunputei Itto-ryu||Ito Juttosai|
|Unknown||Daimon Heito • Nagata Manabu • Najima Haneto • Sasada Tsuyoshi|