Sword Immortal System of All Realms

In an accident, Li Xingye obtained a system that could travel across all realms. In the Bankai Swordsman system, if Madara catches my sword in Naruto, you may die. In Academy City, Accelerator, do you think his shield is stronger or my sword is sharper... This is the story of a second-rate guy who travels through the Bankai. I am a novice writer, so please be gentle. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.