Comprehensive Manga: the Opening Fusion of Yamamoto Yanagi Shigekuni

Accidentally came to the world of Fate and became an unknown heroic spirit? Follow Matou Sakura's unintentional summons and come to the world, merge with Yamamoto Yanasai Shigekuni, hold the Ryuken Wakahu in hand, and turn the Holy Grail War upside down! After reading fate/zero, I couldn't help it anymore. I wrote this book. I wanted to change a lot of things and have an ending as perfect as possible. The first world is fz, and the second world is to be determined! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.