MTL - Chronicles of Heaven - Chapter 1056 Freedom to learn nine

When an S-class elite assassin-raised captain of a special ops suicide squad comes home from a high-stakes Africa mission, he finds himself offered something that could potentially set him up for life- a curious assignment that he could use to finally exit his days of war and slaughter.

Then placed into a high-school setting, Lin Yi is tasked by the chairman of a top-tier multi-billion company with bodyguard duty for non-other than his own daughter, a certain little Miss of said high-school.

His enemies, once ranging from drug lords, mafia bosses, political figures, and national leaders, are soon replaced with spoiled kids who happen to have rich papas and mamas, and Lin Yi finds his intense expertise and high-threat skillset misused, and very underwhelmed…

But he does get a harem cast as diverse as his old enemies, so Lin Yi decides that, for the sake of messing around with girls as an invincible entity in a down-leveled environment, leaving his bloody and death-filled war days behind is something he’d definitely want to strive for.

- Description from Novelupdates

What do you mean by you only accept female disciples?Zhang Yuan glanced at the Emperor of a powerful Dynasty kneeling in front of him and his son, the prince is also kneeling beside him.“Master Yuan, please accept my son as your disciple. I am sure that under your care, my son will reach the pinnacle of the Heavens.”Pinnacle of the Heavens? Zhang Yuan turned his gaze to the so called Prince. Talentless, weak physique and sh!t cultivation technique.Tch, worthless.Zhang Yuan then turned his eyes to another Dynasty Emperor “Master Yuan, please accept my daughter as your disciple.”Seeing the gorgeous woman kneeling in front of him, Zhao Tian smiled faintly.Talentless? I will make you the most talented mortal entity this world has ever seen.Weak physique? I will give you a physique that will break even the limitations of the heavens and earth.Sh!t cultivation technique? Don't worry, choose the best divine technique you want.Sorry but I only accept female disciples!

800 years ago, 3000 dimensional gates opened across the entire world. In that moment, it was as if 3000 different colored eyes opened across the world as hordes of monsters swarmed out of these gates like tears.

Some could destroy city walls with one strike; They had bodies the size of a giant and fed on humans

Some latched onto humans, absorbing their bodies’ nutrients and enslaving humans

Some infiltrated the humans’ cities, disguising themselves as normal human beings while feeding upon human blood to sustain themselves.

In a night, the Human race fell to the bottom of the food chain.

The world had turned into a paradise for monsters…

- Description from Novelupdates

The story is centred around a cute android who initially had a happy life with her master who dearly loved her. But she was then struck by a series of misfortunes and ended up in a robot-equivalent of concentration camp. Through experiencing and witnessing the sufferings towards herself as well as the people/robots around her, she eventually gained a better appreciation of life.