Oh, no! I Became the Sister of the Novel's Tragic Heroine! - Chapter 668 - : Betrayed Blue Fox

Jack Somnus was a mid-wealth professor of economics and a trading advisor for the powerful Johnson family. But after years of working for the Johnsons, he was abandoned without a word. He was laid off without as much as a severence package. Jack’s life got worse when he lost his wife. Depressed and alone, he got into an unfortunate accident. Instead of dying, he travels back in time to his teenage years. Now, Jack has a second chance to live the life he always wanted. He wants to be the one who controls, not the one being controlled. But his time travel hides a deeper secret, one that might throw him for a loop. [WARNING: CONTAINS EXPLICIT EROTIC SCENES]

Eternal battlefield descended, and the reality transformed into a hellish place for those who couldn't awaken a class and those who were lucky enough to awaken were known Awakeners.When living beings turned Eighteen they might awaken their class and gain the ability to wield mana at their fingertips. Awakeners would venture into the Eternal battlefield to fight for survival, gaining godlike strength in the process.Dawn reincarnated into this world, strangely while just a few days old, he successfully awakened the Superhero class as a result he was forced to venture into a dangerous world with an infant body.Thankfully for him he managed to unlock some unique skills which allowed him to survive and thrive.....[Ding! New Class Achievement unlocked][Grade - Epic, Gazing into the eyes of Death with a smile][Have a near brush with death 1,000 times in succession in a span of a few days. Young hero, Death had been chasing you but you have been faster][Your efforts have been awarded, young hero, and a new skill has been unlocked.][Nine Abyss Laser Eyes Level 1 - Launch a laser ray with temperature exceeding 1,000 degrees Celsius at your target.]

When she woke up, Lake returned to the classroom of the third year. The classmates were in class with swords and sticks, and the teacher became a female Taoist.
The little fat man in the back seat, how to put two big hammers under his chair.
Rick found this to be a global era!

- Description from Uukanshu (translated)

fun story