Honkai: Star Rail: Sword of Destiny

Zi Yue has a very strange name, an awkward personality, and a troubled past. He arrives in a wonderful universe, where the Astral Express gives him a sense of home, making his life more exciting than ever. He has no grand ambitions. He only hopes that the happiness of the present can last forever. But no one can escape their past, and his fate was sealed the moment he became a “transmigrator.”

“Fate is sometimes like a tear. By the time you notice it falling, the outcome is already set.”

A few caveats

Note: I'm not a very good writer, and I don't know the Honkai: Star Rail story in much depth. It's also been eight years since I watched Kamen Rider Blade, so some of the details are hazy. I've made up most of them myself. I write purely for my own enjoyment, so if you really can't stand it, please go easy on me.