MTL - Evolved From Polluting the World - Chapter 22 "Tower Net"

I returned after 10 years.

Jun Xie was the number one assassin in modern earth. His skills and knowledge in the field of assassination were unparalleled, his accomplishments unprecedented, his reputation terrified the entire underworld. However, during a mission to retrieve a mystical treasure, a mishap occurred…

He is now Jun Moxie, a sixteen year old super level debauchee, sole heir to the declining Jun family. A family of valiant heroes, left with an old grandpa, a crippled uncle and a debauchee as the sole heir! Accepting the world’s criticism and cold stares with a smile, his new journey begins! His life will be carved by his own will! Rise to the top! Evil Monarch Jun Xie!

“This cup I toast to those I’ve killed in my past life. Forgive me, for there is no chance for you to have revenge. Gulp!

This cup I toast to those whose life I will take in my new life. Forgive me, for you are fated to die by my hands. Cheers!”

- Description from novelupdates

In a world where Heroes are the last line of defence against threats, 17 year-old Zane Skylark, was the most powerful of them all—a symbol of strength and justice. Known as the “Rank-1 Hero, [Hope].”[Hope's] every move was praised by the masses, and his victories were legendary.But during a mission, [Hope] is believed to have died, but only to survive due to an unknown skill—[Immortality].For 60 long days, Zane's lifeless body remains inactive, as the [Hero Association] declares him dead and appoints a new hero who can mimic Zane’s strength under his hero name [Hope].After resurrected.“What's... Happening?”“Didn't I... Die?..”“Immortality?”Zane finds himself in a confused situation.“After everything I did for them...”After finding [Hero Association] betrayal, he decided to distance himself from them.“It's been... almost 3 years. ”“Maybe I should return home.”He decided to return to his hometown, hoping to bury his past and lead a peaceful existence.But... can a hero truly abandon their destiny? Or will new challenges will force Zane to confront his past self and the responsibilities he has left behind?

Yang Feng somehow transmigrated into a different world and received a legacy of an ‘ancient high tech’ family, which does not directly raise his power, but gives him the technology to build things which are way more advanced than the seemingly medieval world.