He was a sorcerer from the divine realm, a master of magic who introduced revolutionary new theories. On the verge of death, he cast a reincarnation spell and was reborn 500 years later. Now living as Lucien, the son of a farmer, he discovers a world where the common sense of his past life no longer applies—a world where magical technology has drastically declined――?!

Overworked Salaryman Jinta dies in a traffic accident and meets the Goddess Leafa. Due to Jinta's good karma he was supposed to be sent to Heaven, but during an argument the two of them were accidentally reincarnated to another world, much to Jinta's delight. Discovering that his Luck stat has gone beyond the maximum of 99 to 999999, Jinta plans to live his life to fullest by taking advantage of the Gacha system that this world runs on.

I, Yuuto Hatano, love the bishoujo game "Houkago no Flare Story" and have played it over and over again. I thought, "If the world were like this, going to school would be fun..." Then, when I woke up the next day… I had entered the game world! And not as the protagonist, but as the villain, Kanji Aku! I had hoped to do all sorts of things with the heroines I admired, but as a villain, their affection for me was at rock bottom. With this, conquering them is nothing but a dream within a dream... Moreover, if I choose the wrong option, what awaits me is death!! As a villain with the lowest stats and lowest affection level, I must overcome deadly choices, conquer the heroines, and escape this world—Go, Kanji Aku!

Narita, a family restaurant employee in his late twenties who is always busy with work, is feeling down about the results of his job interview, while he is having dinner, he is absentmindedly watching a video recommended to him on a video site. The video shows Sasa Yoruzaki, an artist with an overwhelming sense of fashion and singing ability, despite her cool and slightly cheeky responses. Later, when he goes to an old laundromat to deal with some laundry problems, he suddenly notices a woman and feels something is off about her. The woman seems familiar, but it is Sasa himself, the one he had just seen in the video.

From the weakest summoner to the world's greatest dragon knight! The adventurer Jay was mocked by those around him as the "Lizard Summoner." Although he was a professional summoner, the only summon beast he could call forth was a small lizard, which led him to be despised. As a result, Jay couldn't form a party with anyone and continued his adventure alone, cherishing his little lizard, Kucck... But one day, suddenly Kucck grew into a huge and magnificent dragon – Bahamut! Seizing this opportunity, Jay began working as a carrier. Before long, rumors of the "Carrier Dragon Knight" spread throughout the royal capital, and everyone started to rely on him!