|“||I’m Kizuna Kazayama, and I’m one of the four holy heroes—the Hunting Hero, to be exact.||”|
—Kizuna, Volume 8, Prologue
She appears to be Japanese with black hair, wears a western Gothic dress with Japanese Cloak on top. As a Hero, her weapon, the Legendary Hunting Tool, is always attached to her, normally taking the form of a fishing rod that is folded and carried on her waist. At times of need, it can transform into a Maguro bōchō (Large Japanese Fish Knife) to be used as a weapon.
Similar to the rest of the other legendary heroes, she too is an otaku. She mistakenly believed the world to be a game at first and came to realize the truth a little later. She completely disapproved of the idea of killing the other world's holy heroes for their own world survival and believes that the heroes are needed for some other reason. She loves fishing so much that she ignores her missions to fish.
Like the other heroes, Kizuna is from an alternate Japan. Not a gamer, she entered a VR Healing MMO called Second Life and (along with her sister(s)). Then she woke up in the world that Glass is from. Just like the other heroes, she thought the world to be a game and all the introductions by the people to be a tutorial. During her time in this world, she realized this to be another world and not a game as she went through a series of untold incidents.
There, she was on a quest to defeat the Dragon Emperor of that world. During her adventure, she met Glass, who was sent to that same quest to prove herself worthy of the Vassal Fan. They quickly developed a strong friendship and Kizuna was given her cloak by Glass which she treasures. She also befriended L'Arc, Therese, and others along the way. Along with Glass, they created a shikigami named Chris that resembled a penguin (named because it was Christmas when they performed the ritual). Chris was made specifically to aid Kizuna in a fight, (due to her weapons limitation of only being able to directly harm monsters)
Kizuna built a huge mansion as her home with many rooms, so that a number of people could stay with her. At some point, she was captured and thrown into a Labyrinth dimension which she couldn't escape, spending several years trying to get out until Naofumi and Rishia were pulled in by Kyo's trap as they traveled in pursuit of Kyo.
- Once, Naofumi called her a Loli-baba in reference to her age and appearance.
- Like all other heroes, she is also an otaku.