Ji Yunzhou transmigrates into a novel he wrote himself, titled "This Man Is No Gentleman". The novel is long, but shallow, and its main draw is the life of a heartthrob in ancient times.
His teacher, the Crown Prince, the other princes, the prime minister, and the prime minister's son all fall in love with the protagonist. Their behavior afterward includes, but isn't limited to, spying, secret crushes, coercion, and control... In short, these are all plot developments Ji Yunzhou deeply regrets after transmigrating into the story.
That might also be why he keeps getting headaches after he transmigrated... As the saying goes, what goes around comes around. Heavens, his head hurts again today!
P.S. Sickly beauty top, an indulgence in personal kinks, easy to read without thinking.
I felt guilty for leaving this story unfinished, so I'm slowly filling in the blanks.
Theme: Stay true to yourself and do right by all living beings.