thatsamore
It was Zack's own fault for complaining to his younger sister about the novel she wrote. As a result, he found himself trapped in the body of the male lead he despised so much.
Two reasons fueled his loathing:
First, the male lead's indecisiveness and lack of backbone, blindly agreeing to an engagement arranged by his parents without a second thought.
Second, in the end, he betrayed his fiancé by forming a deep, intimate connection with the story's main character, Theo, even while still legally bound to his fiancée. This ultimate betrayal pushed Zack past his limits, making it impossible for him to finish reading the novel.
Now that he had somehow transmitted into the novel, he decided, so as not to complicate his own life or behave like the story's reckless protagonist, to live peacefully and avoid meddling with the other characters.
But of course, nothing went according to plan... because Nia was truly irresistible for nuzzling.
The Zack of the past:
"Hic... what's wrong with me that you had to choose him?"
"Stop crying and making a fuss."
"...."
"You'll never be as good as Theo... remember that."
"Mr. Zack..."
"Stop annoying me, and just leave."
The Zack of the present:
"Ugh... P'Zack... my skin is all flushed."
"That's because your skin smells so good... I can't resist."
"Mmm..."
"Can I... nuzzle you once again, Nia? Just one more time?"