General Najenda and Akame has finally lived peacefully after overthrowing the Empire. But, a sudden warp delivers them to a room where they will watch a show about Izuku Midoriya and My Hero Academia. And wait, who are these people and Gods that will join them?!

This is the story of Japan, where a massive mass fluctuation (gravity anomaly caused by mass) due to a blackout and an earthquake caused it to cross spacetime, becoming physically connected to a mysterious continent. What will they fight against? Are there resources? Is there a possibility of returning...? The world they transferred to is a world with two major nations and many strange myths. Furthermore, it's the Dozar Continent, whose land connected to Japan's, leading to the outbreak of war. A battle against the hegemonic Sulphon Empire. Modern weaponry versus medieval weaponry. The Self-Defense Forces also face internal conflicts as Japan fights its way through while saving persecuted demi-human races locally. There will be many appearances of the SDF's weapons and equipment. While there might be some stretches in logic, I hope you can still enjoy reading it. Also, as time progresses, new weapons are developed in a way that avoids being too unrealistic. RELEASE: 2019 (TL INCOMPLETE)

In 2045, Japan is suddenly transported to another world. With the Self-Defense Forces having become an official national defense organization due to constitutional amendments, how will the Japanese government act toward this other world? Where will Japan's future lead...? RELEASE: 2016 (UP TO DATE; HIATUS IN 2022)

Japan is transferred to the world of Alagaësia just before the start of Eragon. Inspired by Nihonkoku Shoukan.

Triggered by the victory at the Battle of the Leyte Gulf, Japan was divided north and south, walking a historical path different from the original one. The arc-shaped archipelago, which achieved reunification after decades of division, and a single battleship that survived the Great War and lived a strange naval career were transported to another world one day in 2020. RELEASE: 2025 (UP TO DATE)

This is my take on Summoning Japan Fanfics, just less politics but with more on military, humor and explosions.

On December 31, 2029, a sudden disruption left Earth's nations, including Japan, unable to communicate with other countries. However, this was more than just a technical failure-it was a national crisis unlike any since the founding of the modern state. A planet larger than Earth, artificial satellites rendered useless overnight, and newly emerged nations. Yes, the world they now found themselves in was a new realm, a fusion of three different dimensions. Long-standing diplomatic relations and power dynamics were completely overturned, and a new order began to take shape. Please note that this work incorporates a wide variety of elements. The genre has been changed from low fantasy to speculative science fiction. RELEASE: 2020 (TL INCOMPLETE)

One nation in Strangereal garnered a terrible name and reputation after their defeat in the war they started back in 1995 and their name was further tarnished by rogue military members who wished to pit the two nations that were allies against each other. Due to all of this the nation made a series of reforms that were woefully needed to make their country better such as standing neutral in most conflicts unless they are provoked and making reparations to any trouble caused by any rouge element that stemmed from their nation however being neutral doesn't mean they will not have a strong military force, not to invade another country's land but to protect their own. By 2020 they have rebuilt their name, there may have been several bumps while they did but they atoned for their past and the future seems bright for them. However several days after the 25th anniversary of the end of the Belkan war, the nation of Belka suddenly vanished

Reborn in the world of High School DxD, Roy is ready to conquer all with his Copy system. But he soon discovers that his greatest challenge isn't the devils or fallen angels, but the powerful and gorgeous girls inexplicably drawn to him. And with his ability that allows him to replicate the ability of those he touches, he will master everything.... [Do you wish to replicate this ability?] Roy: Yup, why not?

In 1945, Berlin the last stand A veteran Tiger I Kommandant, hardened by battles on both the Eastern and Western Fronts, makes his final stand in the ruins of the city. With ammunition nearly gone, he orders two young crewmen-the driver and radio operator-to evacuate, believing that lives are more precious than steel. Remaining with his gunner and loader, he fights on until the last MG belt is goimg nearly empty and the final 88 mm shell is fired. Surrounded and burning, the three men choose to die with their Tiger, faithful to the end. When darkness fades, the Kommandant awakens to an impossible truth he has been reborn as the tank itself. Thus begins the legend of the Iron Sentinel, a commander who never surrendered, bound forever to steel and war. :NOTES:JUST AN FANFICTION