Thousands of Flying Swords

I am a "traveller". I travel between worlds. There are hundreds of millions of flying swords in my body. It is not a problem to disintegrate a planet in minutes. I travel around the world just because I am too strong. I have been alone for hundreds of millions of years, but I still have the same appearance. Loneliness makes me unhappy. These hundreds of millions of years of loneliness have made me unpredictable. I can be a villain and a decent person. After careful consideration for a long time, I decided to kill myself. Before that, I want to be a chivalrous person, be a good person, and ask for a lovely wife to spend the rest of my life with me. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.