Apparently, Disillusioned Adventurers Will Save the World manga volume 1 features story by Shinta Fuji andart by Masaki Kawakami and Susumu Kuroi.

Veteran adventurer Nick’s life is falling apart. Despite all the knowledge and expertise he’s devoted to his adventuring party, his respected leader kicked him out, his girlfriend dumped him, and his teammates shamelessly accused him of embezzlement. Tired, heartbroken, and looking for a drink, Nick chances upon a few kindred spirits who are jaded as he is. Together, these disillusioned adventurers form an unstoppable team out to save their bleak, depressing world!

Apparently, Disillusioned Adventurers Will Save the World manga volume 2 features story by Shinta Fuji and art by Masaki Kawakami and Susumu Kuroi.

A former noblewoman, an excommunicated priest, and a female dragonian warrior have joined Nick in creating the adventuring party, the Survivors. Teamwork doesn’t come easily to these kindred spirits disillusioned with the world, but they manage to earn a name for themselves. Now, they are tasked to explore the Labyrinth of Bonds for treasure—specifically, for the Sword of Bonds. Will these jaded souls be able to succeed where other adventurers have failed?

Apparently, Disillusioned Adventurers Will Save the World manga volume 3 features story by Shinta Fuji and art by Masaki Kawakami and Susumu Kuroi.

A band of reject adventurers who were all kicked out of their original parties (and have now been deemed a practically ideal team by the adventurers guild for some reason) sets out for a labyrinth to find an ancient artifact called the Sword of Bonds. The gang breezes through the newbie-friendly labyrinth with hardly a scratch—when suddenly a mysterious passageway not shown on the map appears before them...

Apparently, Disillusioned Adventurers Will Save the World manga volume 4 features story by Shinta Fuji and art by Masaki Kawakami and Susumu Kuroi.

Four jaded adventurers and now a sentient, transforming sword? Bond the magic sword was abandoned by the ancient civilization that built them after they were no longer useful, so he’s a perfect fit for the party! The gang’s getting bigger and stronger, so a little relaxation can’t hurt...but who’s that familiar face at the other table? Nick’s conniving ex-girlfriend...!?

Apparently, Disillusioned Adventurers Will Save the World manga volume 5 features story by Shinta Fuji and art by Susumu Kuroi.

A party of adventurers, beaten down by a cruel world, tied together not by trust or love but by necessity… A description of Nick and the Survivors that could fit just as well for Leon, Claudine, and the Iron Tiger Troop! So when Nick steps into the ring and raises his fists, he's grappling with a giant tiger-man…and with the vagaries of character and fate. What led his foe astray? And would one wrong step have sent him down the same path…?