Roy

Ryoma is a boy reborn from another world, who finds himself traveling with a kindly duke's family. After registering with the Adventurer's Guild and successfully finishing his first major job, he accompanies the duke's daughter Eliaria in her combat training....

Invited by the guildmaster, Ryoma attends a training meetup for new adventurers as one of the teachers. On the second day of the camping lesson at the Poison Bug Plains, he teaches unique ways of building bases and methods of telling the edible from the inedible....

Ryoma returns to Gimul after his successful business retreat, having discovered and evolved new slimes and found uses for them along the way. Unfortunately, crime has skyrocketed in Gimul during his absence, to the point where even the familiar Morgan Company has suffered an arson attack....

After some unexpected earnings on his first solo journey, Ryoma has opened his second laundromat with his slimes. He safely returns home to Gimul and receives a letter from Eliaria informing him that Gimul's founding festival is approaching....

Ryoma, the boy from another world, has gotten a chance to visit the Jamil family again. He and his merchant acquaintances, Serge and Pioro, visit the Jamil estate and hear that an unexpected person is getting married....

One day, the life of middle-aged Japanese businessman Ryoma Takebayashi came to a rather sudden and disappointing end. Ryoma had never had a blessed life, but after his death, three great gods sought his cooperation and reincarnated him as a child in another world with swords and magic....

Now that Ryoma has parted ways with the duke's family, it's time for him to begin a new life on his own in the abandoned mine he manages....

Slime's up for one recently deceased middle-aged businessman! When the gods reincarnate him in another world as a boy with magical powers, he discovers that magically tamed slime are an untapped natural resource....

As the wedding fast approaches on the Duke's estate, Ryoma toils away to add his finishing touches to the venue. The night before the wedding he encounters the mysterious Yui and gains another glimpse of the inter-dimensional traveler who came before him....