MTL - The Fallen Merman - ~ The main story is over, please look forward to the side story

I am Ye Qing. Lucky I found a [Monster Factory] application.

This bunch of super strong monsters are individually comparable to over 100 human beings, and they bring all kinds of skills!

Efficiency? With the skill processing speed +300, you still want to compete?

Precision? *cough, cough* Bring me that legendary dial caliper, let’s show them what absolute precision really mean.

Ye Qing: When, us, men want to be successful, we pull out our wallets.

Monsters: Don’t play those malice games with us. The creation of ultimate machinery is our love and life. These impenetrable bodies are our tools of the trade.

A 20 meter tall, overly buffed, savage looking monsters hold on to a ultimate cutting machine and yelled at the sky: “I am not targeting anyone specifically! Rather I am telling you all that, everything, in front of me and my tools are, nothing, but TRASH!”

- Description from Novelupdates

Three Emperors have died in quick succession. The prince whom nobody had taken notice of unexpectedly succeeds to the throne. He is quickly plunged into layers upon layers of danger. The Empress Dowager dislikes him, wishing to install a younger, more obedient Emperor. His half-brother dislikes him, accusing him of stealing the throne that is rightfully his. The palace attendants and servants dislike him, believing that he is not a true Emperor. The Child Emperor must save himself.

On his 32nd birthday, Jeff, along with all of his friends, confesses how they are dissatisfied with their lives.If only I didn't suppress my desires.If only I didn't ignore my feelings for her.If only I confess my love to her.If only I had chosen a different path from the start.If only...At the end of his 32nd birthday, the next morning, Jeff wakes up a decade back to the past. And as if all of his friends have trusted all of their regrets to him, Jeff remembers them all.With his regression that gave him a mysterious system known as Returner Fantasy, Jeff will do everything to change the future, not only for himself but for his friends and the ones he loves.[Warning: Contains Mature and Sexual content.]This book will have a lot of mature and sexual content. But those will not be the main focus of story.This book will show characters trying their best to redeem themselves from their failures and regrets.

I am reborn as a minor character and the mother of the main character, the deposed ruler Leriana Ashford.My husband's younger brother will stage a rebellion against him, and only my young children will manage to escape. And the unfortunate Queen Leriane faces a bleak end. According to the plot, my heroine will sacrifice her life during the rebellion to save her children.Except she won't! Dying at twenty-seven is too soon for me and I'm going to change the tragic plot of this novella.I was lucky enough to be reborn ten years before the events of the novel began. At a time when the future King Philip and his brother Razor had just fallen in love with me at the Royal Academy, and their fight for me led to a feud. To survive - I decided not to become queen and live a quiet life with my father the Duke. And in order to rid myself of these two, I had to go to extreme measures.I decided to start dating the daughter of the cursed Duke, who is feared and hated by the entire academy.