And in some urban stallion novels, there's a trope called "German Orthopedics."
He Zhuo had once been tempted by it.
In his real world, he didn't have a younger sister, and he didn't dare to break the ethical boundaries.
After time-traveling, He Zhuo no longer had this concern, anyway, she's not his real sister, and He Yue is a true beautiful girl—
Of course, the author didn't dare to challenge ethical lines, so gave He Yue a different identity.
Turns out she wasn't He Shoutian's biological daughter, but an orphan he adopted from a coworker.
Not a real sister, He Zhuo had no further worries and began treating He Yue from a man's perspective.
He Yue lost her father, with only a brother to depend on.
She was only seventeen, started school early, in her senior year, but still technically a minor.
She instinctively relied on and trusted He Zhuo, unaware of his dirty thoughts.
