This is a derivative of "Hidden Stories of the Heroes of the Galaxy Sengoku". Mainly because after reading the book, I couldn't help but complete the story between Ryuuga Rei and Masamune. Because I like Masamune so much, I feel that she is the real hero who will always live in Ryuuga Rei's heart. The glorious existence of the old immortal, she was loyal to her country and people, fighting to the end, she was an enemy, but she was deeply rooted in his heart than other wives and concubines of Ryuga Lei, and left the most precious legacy to Ryuga Lei, so she wrote a story for them.
Conception: