I Transmigrated to the 1970S, But I'm a French Opera Singer

Leander, an operatic tenor, transmigrated into Bungo Stray Dogs one day and became a French opera singer with the same name. But he hadn't read the original work, so as soon as he transmigrated, he started wondering: Where was La Traviata? What about Othello? Where were the opera librettos he knew so well? He asked the theater staff, but they had no idea. They'd never heard of Alexandre Dumas, and they didn't know Shakespeare either. It seemed that the great writers of this world had vanished without a trace. Fortunately, he still remembered a few classic librettos. Relying on his memories, he successfully recreated many classic operas in this world, including La Traviata. He shot to fame and became a celebrated opera singer. Then, one day, a young man came to see him. “Alexander. You can call me that,” the other man said. “By the way, perhaps you can explain how you knew the name of my ability, [La Traviata].” Alexandre Dumas. A father and son both bore this name: Alexandre Dumas père and Alexandre Dumas fils, the two great writers known to later generations. P.S. There are lots of headcanons, and the characters may be out of character. Some details may not be rigorous. This isn't a plagiarism-based story; the original authors will be credited. The protagonist is a flirt and may have several romances. He's also a heartthrob. To avoid being caught off guard, please read the content notes in the author's note at the end of Chapter One before starting. The endgame pairing is set: Alexandre Dumas fils. Theme: Spread truth, goodness, and beauty.