There was a deviation when performing a space jump. How to break through the dimensional wall!
Yun Zijin, the second prince of the empire, who originally just wanted to return to the ancient earth to find a way to activate his powers, made an error while jumping in space and entered the world of demon slayer. He traveled through it for the first time: I'll kill him! Alien monster made of arms is beating the little boy! The second time traveling: Oh my god! This perverted Mary Sue wants to kill this little girl! The third time travel: What kind of trouble are these spider monsters all over the mountain trying to cause! The fourth time... Well, there is not enough energy, so there is no fourth time! Yun Zijin had to accept his fate and find a way to activate his powers here, and at the same time use his advanced technology to save people, destroy ghosts, etc...
The original protagonist comes from the future interstellar, has superpowers, has future technology, and travels through time with his sister and robots who have water superpowers.
The protagonist comes with his own CP, an imperial general, a sweetheart and a sweetheart, and he won't mess with people in Demon Slayer.
It may be OOC, the logic is confusing, and the protagonist may be randomly outwitted due to plot needs.
The author's writing style may not be very good. It's my first time writing. Please forgive me QAQ.
The first chapter mainly introduces the background and cheats, so there is a lot of nonsense
Purpose: Travel to Demon Slayer and use futuristic medical methods and superpowers to rescue Hashira Slayer's Blade