Adventure

An 18-year-old girl who lost her family in an accident, Yamano Mitsuwa falls off a cliff one day and transferred to a different world with a civilization level of medieval Europe. Mitsuwa who discovered it was possible to go and return to Earth after a deadly fight with wolves decided to live in both worlds.

「For security in old age, I will aim for 80,000 gold coins!」

he manga centers around a certain boy who lives alone away from people, but harbors a special dream. One day, he meets a lone girl, and the story begins as he becomes part of the girl's destiny.

Ukei Kaito fought a desperate struggle in order to fulfill his role as a summoned hero. He defeated the Demon Lord and saved the very world, only to meet an end filled but with betrayal. The companions that he’d trusted throughout his journey betrayed him and killed him by sticking a blade through his chest.

It was then that he swore to himself.

He swore that, if given another chance, he would no longer so rigidly cling to the concept of “faith.”

He swore that, if given another chance, he would dedicate himself to enacting the most atrocious act of revenge possible.

One day 's lunch break, suddenly a male high school student Yuzo Ogata who has been transferred to another world of sword and magic together with four other friends.
According to the Princess of Space-Time Magician, a foreign world who summoned them, they want them to beat the Demon Lord as Heroes to save this world.
Suddenly I was surprised at four friends "Temple", but it was a relaxing expression ... ... where the princess told of a startling fact!
"`?? There should only be four braves though?"
"A man who was mistakenly summoned to a different world"

Kazura was selected as the winner on a lottery that he bought on a whim, and received 4,000,000,000 (billion) yen.

To evade the hyenas that smelled the scent of his money, Kazura took refuge at an old residence that had been handed down from generation to generation in his family.

When Kazura was investigating the place that would become his shelter, he stumbled on a certain room where it was possible to go into and back from another world.

Long ago, the God Aigis sealed away the devils that caused havoc in the human realm. Now many thousands of years later the Demon God, Tiamat, has come to the human world seeking to destroy all humans using the very devils that Aigis had sealed away so long ago. One of the first to fall was the imperial capital where their prince, who is descended from heroes, had no choice but to run away and watch as his homeland burned. Now he must do what he can to survive Tiamat's onslaught and recruit allies in order to take back his kingdom.

Gabimaru the Empty, a former ninja assassin known feared as a heartless husk of a man, spends his days on death row wondering when an executioner skilled enough to so much as harm him will arrive, as he thinks nothing of seeing an end to his meaningless existence... Or so he thought. Then the lady executioner, Asaemon the Beheader, rekindles his hope with an astounding proposition. If he ever wishes to see his beloved wife again, he is, under the auspices of the shogunate, to embark on a perilous voyage to the mysterious mystic island said to house the elixir of immortality.

The story follows a team of mercenaries known as Lagoon Company, who smuggle goods in and around the seas of Southeast Asia. Their base of operations is located in the fictional city of Roanapur in Thailand, and they transport goods in the PT boat Black Lagoon. Lagoon Company does business with various clients, but has a particularly friendly relationship with the Russian crime syndicate Hotel Moscow. The team takes on a variety of missions - which may involve violent firefights, hand-to-hand combat, and nautical battles - in various Southeast Asian locations.

Everyone in a high school is suddenly transported to another world. As they are attacked by monsters they find that some of the students now have superpowers. They organize themselves into two groups. Those without powers are called the Stay Home Group and those with them are called the Exploration Group. On a day where most of the Exploration Group is out, the remaining ones that stay behind start the slaughtering and raping of the Stay Home Group. Here we meet our protagonist, an average guy with no abilities who had just barely escaped death at the hands of his schoolmates.