In Naruto as Zhongli - Chapter 39: INAZ - 38

An unnamed 34-year-old Japanese NEET is evicted from his home following his parents' death.

Upon some self-introspection, he concludes that his life was ultimately pointless.

Walking down a street he intercepts a speeding truck heading towards a group of teenagers, in an attempt to do something meaningful for once in his life he manages to pull one of them out of harm's way before getting himself in the way of the truck and dying.

Awakening in a baby's body, he realizes he has been reincarnated in a world of sword and sorcery.

He resolves to become successful in his new life, discarding his past identity for his new life as Rudeus Greyrat.

Shock! The Eye-Candy of the Entertainment Industry is Reborn as a Top Student!The niece of the Zhang family is said to be the reincarnation of the God of Literature. From childhood to adulthood, she has never scored second place in any exam. Even on the day of a test, when she had a fever of 39.9 degrees, she still effortlessly wrote like a supernatural being—truly amazing.When neighbors talked about this girl, their envy and astonishment were indescribable.This girl was nothing short of a Tsinghua or Peking University candidate; the Zhang family’s ancestors must be smiling from their graves.“Have you heard? That Zhang family girl topped the citywide high school entrance exam again. City No. 1 High School and Experimental High School nearly fought at the Zhang family’s door to recruit her...”“What’s that? The principal of Lanya Noble High School even came with a million yuan to visit her…”The world of a top student is beyond our understanding!——The world of a top student is very lonely!——When one possesses unparalleled beauty but lacks status and power to match it, this becomes the root of all suffering.In her past life, Shen You'an refused to compromise with the hidden rules of the entertainment industry. Her life was one of hardship and destitution, ultimately ending in her dying alone on a snowy winter's night on the streets.Once celebrated as the stunning but talentless beauty of the entertainment world, she left quietly and tragically, without drawing attention from anyone.When Shen You'an opened her eyes again, her firefighter father had just passed away in the line of duty.“Ding.” Your System for Top Students has arrived. Please sign for it.She cut her long hair, put on glasses, and concealed her beauty. Thus, she began her journey to becoming a top student.Until she gains the strength to protect her unrivaled beauty, she would rather let her brilliance be hidden than become a target of envy and harm.

Shen Ziqiao woke up from her deep slumber to find herself transmigrated as the character of an ancient novel. To make matters even worse, she was written by the author to be the moronic daughter of the villain, merely a walking cannon fodder.

“Are the Gods punishing me because I left a bad review?!”

Yet it doesn’t end there; she has to strive against a reborn heroine’s revenge! And especially against the major death flag in the plot: getting married to the capital’s fool.

But why does she find this fool’s eyes to be too cunning?

- Description from Novelupdates

He—an enigmatic and cold-blooded soldier with a mysterious background.
She—a ruthless and bloodthirsty spy.