I'm Invincible with a Secret Identity

I'm terrible at coming up with titles. This story includes the following keywords: [Miss Marple wreaks havoc] [Mr. Hannibal punishes the wicked and promotes good] [Mozart plays the Moonlight Sonata] [Little Red Riding Hood sets Paris ablaze] [Half-dragon Siegfried becomes a newly minted corporate drone] and more * In a world where classic works have disappeared, strange things are born... * I couldn't find a story to my taste, so I decided to write one myself. The female lead's secret identity is sometimes male and sometimes female. Her identity is never revealed. Premise: Encounters between people are the most wonderful thing of all.