One moment, a certain salaryman is on cloud nine, that promotion finally within his grasp, and the next, he’s keeled over pain, and that was all she wrote. Luckily for him, fate had a bit more to say. A world of magic, monsters, and other such life-shortening entities await his newly reincarnated self for a second shot at life. With nothing but his past-life experiences and sharp business skills to guide him in the foreign lands of Galdardia, he takes up the name Luciel and vows that his (next) demise will be from naught but old age.

Eizo is a middle-aged, overworked software engineer who loves cats. One night after working late, he saves an injured cat from a speeding truck. The cat survives, but Eizo does not... Luckily, that cat turns out to be a god-like being who offers him a second chance in another world! Eizo decides that he wants a slower life, one where he can live off the things he creates with his own hands. So, why not become a blacksmith? He does have one other stipulation: a cat companion for his quiet life.

Abruptly catapulted into a fantasy world, Mimori Touka and his classmates have been summoned by the world's resident goddess to serve as heroes. Luckily, most of the students display amazing skills upon arrival—except for Mimori, whose abilities bottom out at a measly E-rank.

When sarcastic loner Haruka gets transported with his class to another world, he's not wild about adventuring, but he wouldn't mind having some cool powers. Unfortunately, he's last in line when the magic cheat skills get divvied up, so by the time it's Haruka's turn, there are no good choices left. Now Haruka will have to take on this fantasy world the hard way—on his own, with a hodgepodge of bizarre skills! When infighting and chaos break out among his classmates, can this loner come to the rescue?

Mukouda Tsuyoshi was nothing special in modern Japan… So when he was summoned to a world of swordplay and sorcery, he thought he was ready for the adventure of a lifetime. Too bad the kingdom that summoned him only got him by mistake! Not only was he not one of the three summoned heroes, but his stats were laughable compared to theirs. On top of that, there's something really sketchy about this kingdom…