Star Ghost Isekai Agency
My name is Naoko Matsuda. I was a military bodyguard tasked to protect Japan's Prime Minister.
Equipped with H&K pistols and bullet proof vests, I and my bodyguard squad got ambushed by an unknown terrorist group while escorting the Prime Minister on the sidewalk.
During the long firefight and outgunned by the terrorists' assault rifles, the military bodyguard squad held their ground and waited for reinforcements.
Soon after the reinforcements arrived, we were able to eliminate the terrorist group.
However, a terrorist pretended to be dead and at the right moment, he directly aimed at the Prime Minister with his pistol.
I quickly spotted him and then pushed the Prime Minister aside while taking a bullet to my chest.
Meanwhile, the body guards quickly eliminated the surviving terrorist.
Although, it unfortunately turns out that the bullet is a fatal armor piercing type. I started losing a lot of blood.
Knowing that I would die soon, the Prime Minister quickly went up to me and told his thanks.
"Thank you for saving my life. You did Japan proud." the Prime Minister commended in a sad tone.
"It has been my honor serving you and our country." I proudly replied as my final breath.
After my death, I eventually heard that I became Japan's decorated hero for protecting the Prime Minister's life.
"Where am I? I'm dead, right?"
"Yes, you are." a mysterious voice answered.
"Who are you?" I hesitatingly replied.
"I'm called the Angel of Death."
"What's going to happen to me?"
"Would you like a new life?"
Without any hesitation, I replied "yes".
"Okay. I'll have you reincarnated in another world and born to a noble family due to your selfless heroic action." the Angel of Death replied.
After the Angel's reply, I got reincarnated in another world as a noble family's baby.
Because of the Angel of Death's influence on giving a dream to the Silverfang family, my new name became Naoko Silverfang.
The fantasy world is called Arthia. In this world, there is an on-going war between the Phoenix Empire and Demon Lord's invading forces. It became known as the Great Demon War.
During my peaceful childhood years, I gradually recovered my previous life memories. I then grew up as a teenager and attended an adventurer academy.
Equipped with my previous life military knowledge, I quickly developed and became a well known promising prodigy within the Phoenix Empire.
Because of my prodigy status, I was given a legendary long sword weapon called the Flame Celestia. The weapon can shape-shift between its sword form and another form that the wielder desires. I chose its second form to become a revolver pistol.
Fortunately, guns such as semi-automatic rifles and pistols exist in this world which means I won't be questioned about my weapon's revolver pistol. But, guns are not very common.
After my graduation, I formed my own adventurer party with my three female friends and we dedicated ourselves to defeat the Demon Lord. Two of the girls are my academy friends and one girl is my childhood friend.
Our party is named Star Ghost.
During our adventures toward the final battle of the Great Demon War, we managed to defeat the Demon Lord. But, it came at a heavy price. All three of my party members got killed during the fight.
Since after the Great Demon War ended, I became the Phoenix Empire's Legendary Hero and the Star Ghost party name got recorded. However, I became lonely due to my deceased female party members.
Who I mourned the most was my close childhood friend named Siera Wellsong. We were supposed to get married after the war and have my other two female friends living with us.
Years later in Japan, the Japan Self Defense has discovered an ancient crystal artifact that produces temporary portals to another world.
The military has sent an investigation team to visit the other side.
Meanwhile, the Phoenix Empire detected a mysterious anomaly. They deployed me and a military platoon to investigate it.
When both sides encountered and attempted to communicate with each other, I recognized the Japanese language and explained to them that I'm their reincarnated bodyguard hero.
A few months later and with my influence, the two nations peacefully agreed to become secret allies and have a joint military alliance.
They established a special agency that is equipped with knowledge from both worlds, and is tasked to indirectly protect Japan and the Phoenix Empire from any international threat.
Named after my heroic party and to continue the legacy, they are called the Star Ghost Agency.