Kazuya

Kazuya is one of the seven heroes. He comes from the game Shrift, alongside Lampas, Mukuro and Daji. Like most of the other characters in the Collaboration Scenario, he starts off without any levels in jobs or races until he reaches a proper job change book.

Biography
Kazuya first appears in chapter 2, and also show up in chapters

He wakes up from a bed surprised to see himself in an apparently medieval house. He feels worried, as he feels he is now unable to use magic. Still, he manages to recover his gun, and checks his environment. When he checks himself in the mirror, he slightly panics as he notices a crest on his hand. He decides to focus on getting a grasp on the situation.

When he enters the hallway by leaving his room, Myusca's voice echoes in his mind and inform him (and several other people) that they will be turned into her food, unless they manage to escape. As he starts moving, he gets attacked by a Lampas. He is surprised to see one of them here, and wonders if its appearance comes from the work of Hecate.

When they start chasing him, Kazuya starts to run away, and after crossing several rooms, notices a monk boy running away extremely fast. He decides to try to find him to protect him. As he continue progressing, he notices a Lampas light, silently informing him that a human met his demise here. He notices he is trapped into a room loop, and manages to extricate himself of this trap by leaving by the way he entered.

He's then ambushed by another Lampas who blocks his way. He attempts to push her back, and is surprised when he casts a fire spell at her, burning her. He stops the flames with water from a pot. The Lampas let him pass, but guilts trip him for having burned her. He realizes that she will pester him to follow him even if he ignored her.

Kazuya then interrogates her to know why she's here, and is surprised to learn that just like him, several Lampas were sucked by a black hole vortex. He has difficulty accepting that this is a parallel world at first. He receives additional information, namely that magic is easy to use in this world which is why he's able to use it once again. He then refuses Lampas' lewd offer.

As he keep trying to catch up to Hakunen, Kazuya meets his first Spirit Fox. He presents himself as a Demon Hunter when the latter tries to seduce him and tell her to run. The result ends up being too effective, as she runs away in a panic while screaming. Unfortunately, Kazuya reaches a pub where tens of them are drinking, and is aghast when they take him for an exterminator. Right afterward, a shocked Hakunen is surprised by the large number of supposedly dead foxes around, and flee Kazuya in fear. A clearly dumbfounded Kazuya is determined to chase him to at least clear this misunderstanding. Eventually, he manages to free him out when a large group of Spirit Foxes gather to block the monk boy's path, and finally manage to get him to listen to what he has to say.

As the duo discuss, they realize they both got sucked in this world by a vortex and are in the same delicate situation. Hakunen then joins Kazuya, and tells him that he's looking for his master. When Hakunen blushes, Kazuya thinks there is a forbidden love between both of them.

When Hakunen tells him that he himself is bad at fighting, Kazuya tells him that he will defend him, before being flabbergasted when Hakunen proceeds to crush a boulder in a single punch. After crossing several mazes, the party ends up meeting a young man who tells thel they're in the village of Finoa before unfortunately falling prey to Myusca. Realizing they're outclassed, Kazuya leads the party away before running into a large group that took refuge. However, Myusca follows them, suck dry a few persons, and leave to enjoy the party marinating in their own fear.