Acardia, a world of swords and magic.
On an island at the farthest reaches of said world, a battle had raged for more than three days and had only recently concluded.
"Haa… haa… ha… It's my win, Demon Lord…"
The one who said such words while breathing heavily as he supported himself with a sword was the one chosen to represent humanity as a hero, in other words, I, Andou Shougo.
"Kuhaha… an utter defeat. I congratulate you, oh hero of the humans."
With his body riddled with nothing but wounds, such were the words last breathed by the one who governs the Demon Race, the Demon Lord himself, before collapsing on the ground.
The monster, which was even said to be a Calamity that would eventually destroy the whole mankind has been defeated by me, who has mastered all kinds of magic and has continued to pursue strength for over the last 10 years.
With this, I have brought mankind a long-lasting period of peace.
"To think I'd be defeated by the likes of a human… Still, strangely enough, I don't harbor any negative emotions. I can even say that I am proud to have gallantly fought you to the death… So long, hero. I'll reach my limit soon."
Having said that, the Demon Lord's eyes then closed, never to see the sunlight again.
"Haa… I won…!"
In this land, where devastation was all the eyes could see, I fell to my knees and looked up to the sky.
I have won.
After a long time of training and journey, I have finally defeated the Demon Lord.
I have finally fulfilled the condition the Goddess has set upon me on that day, at that time in the Celestial Sphere.
With this, my wish can now be realized.
Yes.
My one and only wish.
The wish to make my little sister, Miku, whom I've left behind in Japan, happy.
"Come, Goddess! I have now fulfilled my promise! Now, it's your turn to fulfill yours!"
I yelled as such towards the Heavens.
Then, from where I was looking, a ray of light shone down.
And within that light, from high in the sky, was a familiar beautiful girl with wings growing on her back.
"Congratulations on defeating the Demon Lord, Andou-san. I never expected for you to actually achieve it."
"You are…!"
Yes.
The beautiful girl in front of me was the Goddess I met in the Celestial Sphere ten-odd years ago, and the same Goddess who had sent me into this world, Amaterasu.
"I've been watching your great efforts from the Heavens all this time. Your numerous trials and tribulations, as well as the times when you were on the verge of death. You did an excellent job in defeating the Demon Lord. As promised, I will grant you whatever you desire. Now, tell me exactly what it is that you wish."
"My wish will never change. I want my little sister… Miku… to be happy."
Hearing that, Amaterasu then smiled and said, "I knew you'd say that. I have already finished the preparations for your sister's happiness. Now, come this way," and held her hand out.
I took that outstretched hand.
Then my body was lifted up gently.
And was slowly ascending towards the sky.
...However, it was at that time...
"Please wait for a moment, Shougo-sama!!"
I suddenly heard a familiar voice ringing throughout the ground.
