[JoJo's Bizarre Adventure] The Charmer's Bizarre Adventure

Emmanuel noticed that the Alpha he was dating had a distinctive star-shaped birthmark.

How strange. Why was it exactly like the birthmark on his ex-boyfriend?

It had to be a coincidence, he thought.

* Top-focused story, with the bottom doting on the top. The top is a charming, irresistible heartthrob.

* A multi-anime crossover, mainly a JoJo's Bizarre Adventure fanfic. Basically, it's a story about the top dating everyone; almost every character has a one-sided crush on him. May include love triangles, the top being pursued after a breakup, White Album 2 situations, lovers becoming rivals, stepmother-and-son romance, widower romance, and other weird things the author is interested in...

* ABO universe with six sexes. The protagonist is once again my regular, Emmanuel, but his sex, personality, and strength will vary. (See my other two heartthrob stories.)

* This story involves (pseudo) incest, but that's all because the Joestar family tree is such a mess. The author takes no responsibility!

* This story is made up of skits, memes, and romance, so don't expect too much from the plot~

Theme: What does a romance story need a theme for?