Comprehensive Manga: Starting from Being Chased by the Butterfly Ninja

After Shirasaki woke up, he found that he was in a world of demon slayer. And the place he traveled to happened to be right next to Butterfly Ninja's bed. So Shirosaki could only rely on the Heroic Spirit System of the Bankai to escape desperately while being chased by the blackened Butterfly Ninja. It doesn't matter whether you are miserable or not, all you need is for me to be your master! Etc! The owner here has no ambiguity! This is not a master-servant game! This book is out of this world! ! ! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.