Sadao has blonde hair, he has brown eyes,he is always wearing a scarf, mostly black or dark blue. He wears an green traditional male's kimono with a blue-green jacket over it, along with traditional straw sandals and possibly bandages around his legs and feet. Some of his red strings are attached to the jacket.
Sadao is most the time lonely, and train lonely, he believes that he could do everything alone believed that comrades and friends were nothing more than hindrances to him. After joining Panther Claws Sadao changed, and started to stay with friends, but he was still a bit rude, easily irritated and slightly vulgar, often resorting to violence to solve his problems. However, his personality seems to have changed drastically when he met Kenjiro who became is close friend, becoming more gentle and polite, though he still remains strictly loyal and serious. He seems to have a weakness for girls.
Binding Magic (拘束魔法 Kōsoku Mahō) is Sadao main magic, he attacks with his strings and with binding magic.
- Nekōsoku Tube: The user conjures magical tubes which they fling at the target and bind them, effectively restraining them. The tubes constrict or stretch on the user's command. The tubes nullify the Magic of the one it wraps around
- Kitten Blast: The user produces restraining tubes from both hands and combines them together, blasting them towards the target in a spiral motion.
- Bind Snake: A spell that appears in the form of a snake tattoo. The snake winds its way around the target's body which restricts their movement.
- Cat's Cradle, Spiral Blade: is a technique whereby black string is laid out in a spiral shape beneath an enemy's feet and slices them when pulled.
- Thorny Whip: Is a technique, using his string or magical tube, he make them move quickly , them thorn attack the target.
Telekinesis (テレキネシス Terekineshisu) is Sadao's secondary magic, a type of Magic that allows the user to move physical objects and substances with their mind.