Married To The Cruel Crown Prince - Chapter 659 - Don't Need To Show Me

Xiao Qingrong had no mother and no father. With his own ability, he climbed to the peak of life, then encountered a system who could shuttle him across time and space. “Do you want to become a male god?”

He turned into a 17-year old, weak chicken with two years left in prison, Xiao Qingrong coldly interrogated the system. The system, playing dead, threw a powerful pill.

#In short, this Male God always threatens his Super Male God System#

Ye Xiwen was previously only an ordinary university student on Earth, but unexpectedly crossed through into the world known as the Zhen Wu Jie world! In this world, formidable warriors are capable of turning over mountains and collapsing the ocean, destroying the sky and extinguishing the earth! He originally had ordinary aptitude, because of that he received the mysterious special space! Any martial art can be deduced within the mysterious space, other people practice for decades, he only needs a year! So long as he has enough spirit stones, any talents he faces are all floating clouds!

- Description from Novelupdates

A master assassin transmigrates into an interstellar era.

…but it seems pretty doable.