By the Grace of the Gods Series

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!

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, while learning new magics along the way! With a variety of slimes under his wing, Ryoma enjoys his second chance at life while encountering many kind people in this otherworldly fantasy story!

Office worker Ryoma Takebayashi had an unpleasant life and an unlikely death, but the gods of a parallel world reincarnate him as a boy with great magic abilities and all memories intact. After Ryoma registers with an Adventurers' Guild, his first challenge is protecting a town from an epidemic. Will his modern-day Earth knowledge and advanced slime skills be enough to halt a plague?

Assorted issues crop up at his laundromat, but, as he solves them, he installs more security equipment in the store and becomes closer with his employees. When it's suggested that he start training new staff so he can open a second laundromat in another location, Ryoma seeks out the ideal spot for his new store by going on a solo adventure for the first time! Ryoma's connections with the kind people around him further expand his world in the fourth installment of this daily life fantasy!

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 and his employees decide to run a stall at the festival that sells foreign food and unique drinks.

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 in ways that are easy to understand, drawing everyone's attention. Then, at the request of the students, a mock battle is held between the teachers, and Ryoma demonstrates how to use a bow in combat! 

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. Ryoma agrees to help prepare for the wedding, but at the same time, he inexplicably starts working on a new product using slimes. There are more familiar faces and peaceful moments, of course, and new allies too!

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. After the grandiose wedding, the gods among its attendees, a sense of normalcy returns to Ryoma's life. A new adventure in a new destination may lead to a jackpot of new slimes like this fantasy world has never seen.

Ryoma continues to enjoy his extended time in the fishing villages of Fatoma territory, away from his home base in Gimul. As he streamlines his morning hunts of mad salamanders to protect the fishermen at work, Ryoma receives two more special requests from Count Porco, lord of Fatoma, where his culinary ingenuity shines! Can Ryoma accomplish Porco's quests with the help of his evolved slimes, modern knowledge, and experience in this fantasy world? While his slow living comes to fruition, a shocking truth about Ryoma's previous life is revealed.

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. Ryoma attends a meeting of small business owners in the city to address the rapid increase in crime, but when the host of the conference appears untrustworthy, Ryoma decides to take a stand against the supposed crime stoppers to protect his shop, employees, and Gimul itself.