"It's just that what I should do and what I want to do are 'meshing together' now."

Code Name: Single=Gear
Age: 16
Height: 161cm
Birthday: July 16

A high school boy adept at fiddling with machines who runs around each time he receives a repair request. He has above average concentration abilities, but because of this, he tends to forget what's around him. As a result of holding Koyori's hand when she was sleeping in the laboratory, he becomes a Hand Shaker. Koyori will die if he lets go of her hand. She reminds him of his younger sister who passed away.

"..."

Code Name: ???
Age: 15
Height: 150cm
Birthday: March 20

The girl who had been continuously sleeping in the laboratory. She woke up as a result of holding hands with Tazuna, and becomes his partner as Hand Shakers. She is expressionless and never says anything. She will lose her vitality and die if she is not holding hands with Tazuna at all times, including when they are asleep. In addition, their defeat as Hand Shakers also means death in real life for her...

An all-purpose Nimrod in the shape of a gear. It is a versatile weapon that can layer on top of itself infinitely to make a sword, a gauntlet that can be equipped to an arm, a chakram projectile, can even be a shield if set up like a wall. The drawback is that it doesn't have any one prominent power.

"It's all right. Masaru, you have your big sister, okay?"

Code Name: Fortune=Card
Age: 16
Height: 162cm
Birthday: June 13

A gentle, but reliable honor student. She's the student council president of the high school Tazuna attends. Her specialty is tarot card readings, and often uses her fortune telling to advise those around her. She's Masaru's elder sister.

"This is your dead end."

Code Name: Emperor=Card
Age: 12
Height: 149cm
Birthday: June 14

Riri's little brother. He's so intelligent, calm, and mature that it is hard to believe he is 12. He is often exasperated by his elder sister's actions, but diligently looks after her. He is so good at card games that he is always #1 in the Kinki area. When he is playing card games, you can see a side of him different than usual.

"We're the best boss and subordinate pair. Well, in that case... we should be able to change anything."

Code Name: Dagger=Shadow
Age: 25
Height: 146cm
Birthday: February 10

A girl who's often mistaken for a middle school student with her small body, but she is actually a working adult. Contrary to her looks, she is very competent at her job. She's also a hard worker with a good personality, making it hard to find faults with her. She often makes rebuttals at her subordinate, Hayate.

"I'll follow you anywhere, Senpai!"

Code Name: Blade=Shadow
Age: 22
Height: 190cm
Birthday: May 1

Chizuru's easygoing subordinate and a fairly new employee. He is extremely tall, and people often mistake him for being Chizuru's boss. Every time that happens, he ends up getting scolded by her. He is a hard worker and excels at backing up Chizuru.

"You were defeated because I was too strong. That's all. Got that engraved into your soul?"

Code Name: Sing=Sword
Age: 18
Height: 158cm
Birthday: January 1

A top-tier Hand Shaker who fights alongside Hibiki. She's a bright, strong-willed, and confident girl who usually performs as a pop idol. Her characteristics include her pigtails and her habit of uttering proverbs when anything happens.

"Ahhh! Kodama, I expected nothing less from you! That is so deep!"

Code Name: Sonic=Sword
Age: 30
Height: 165cm
Birthday: March 3

A Hand Shaker that fights together with Kodama. Previously a businessman, he quit his company to support her. He currently works as her manager. He is always impressed by Kodama's words and actions and glorifies her.

"Prepare to be hunted, you piece of-!"

Code Name: Break=Chain
Age: 18
Height: 173cm
Birthday: October 27

A Hand Shaker that fights together with Bind=Chain to make his wish come true. He controls Bind with his power.

"Yes, I'm coming..."

Code Name: Bind=Chain
Age: 18
Height: 161cm
Birthday: November 8

A Hand Shaker that fights together with Break=Chain to make her wish come true. She is dependent on Break.

"Ahaha! That's what I'm talking about! Optimism, positivity! That's my philosophy in life! I love believing that all humans are really good at heart!"

Age: 31
Height: 185cm
Birthday: August 11

An university associate professor at the school Tazuna attends. He's the first researcher to study Hand Shakers. Always hyper, he has a tendency to leave others in the dust when he starts to talk. His life philosophy is "be positive." His favorite food is shumai dumplings.

"Big Brother... Don't let go of my hand..."

Birthday: September 20

Tazuna's little sister who passed away. She loved her brother and was very attached to him.

"Geez, Honey. Yourre so..."

The pillar of the Takatsuki family who warmly looks after Tazuna and Koyori's growth. He is extremely skilled at concentrating, so he doesn't return to reality for a while once he starts reading the newspaper. Tazuna's mother often pulls pranks on him when he's in his concentration mode.

"Hehe... Oh, Sweetheart..."

A kind, calm, and understanding mother. She supports Tazuna and Koyori from the sidelines. She can be a bit mischiveous, playing pranks on Tazuna's father when he starts to concentrate. She's a beautiful middle-aged woman who looks a lot younger than her actual age.

"Your obsession with machines is amazing. I'll count on you again if I need repairs again."

Birthday: December 20

Tazuna's sociable, slick schoolmate. He often notices subtle things about people.