A young man who has never seen the Great Sword but knows the Great Sword traveled through space and came to the Great Sword. He or she gained special power in the space and transformed his soul. After witnessing his only reincarnated father being killed by a monster, she embarked on the road to fight against the monster. Here she met many partners, and her goals changed because of this. "I exist for my partners. No one can hurt them, not even the shadows in their hearts!"
I have never watched the anime of Big Sword. The only reason why I wrote this is because I have read a lot of anime fan fiction and wrote it as a hand. So don't think of it as a regular fan fiction, just think of it as a fantasy~