Skybound Throne - Chapter 144: Never give up.

The MC entered the body of the An family eldest son, An Ziran, an arrogant 16 years old boy who weighed 78 kg (~171-172 lbs), who only knew how to eat, play and sleep. Seeing his current body, An Ziran decided his first priority was to LOSE WEIGHT!

Three days later after he became An Ziran, An Ziran’s father and his biological mother died, which meant as the eldest son he had to take over the family business.

Beside his legitimate first wife, An Ziran’s father also married 3 others women, who all wanted to take over the An family fortune but only the eldest son could be able to touch it, therefore they have to depend on An Ziran in order to live a comfortable live.

An Ziran’s father also had an older brother who is always planning to steal the An family fortune. The elder brother of An Ziran’s father and the woman he married had powerful connections. In order to save the An family fortune, An Ziran has to find a golden thigh to cling on. The butler told An Ziran that there is an engagement between the An family and an influential family. Therefore he takes his sister to that family house to make a connection.

However, during their journey, An Ziran’s younger sister overheard that the son of that family is UGLY, so as a beautiful and spoiled young lady coming from a rich household, she didn’t want to marry him and decided to run away. Without any other choice, An Ziran had to take his sister’s​ place and marry that man, who told him that he would let him go soon, but lied.

- Description from Novelupdates

…but it seems pretty doable.

(The main story has ended!! A 1v1, sweet and clean romance novel) Shen Chuwei suddenly travels back to ancient times to become a neglected concubine of the Crown Prince. She thought it was the beginning of a leisurely life of eating and drinking, but unexpectedly, she ends up being deeply pampered by the aloof Crown Prince.Lady Xu: “Shen Fengyi, you'd better know your place. Tonight is my turn to serve His Highness.”Shen Chuwei says: “The Crown Prince is yours, I promise I'm just here to freeload.”That night, Shen Chuwei was kept in the Crown Prince's room~Lady Chang: “The Crown Princess is mine. You can't even dream of sharing her.”Shen Chuwei replies: “I'm not interested.”Later on, not only does Shen Chuwei become the Crown Princess, but she also gives birth to a pair of twins. The Emperor and Empress are in a scramble to pamper them, guaranteeing a smooth ride to victory.All the women in the East Palace vie to become the Crown Princess through their cunning and devious methods, yet all of these are clearly seen by Xiao Jinyan, who has the ability to read minds, causing him to avoid them.That is, until he sees a small 'salted fish', sweet-talking and soft-bodied, just to his liking, “You will serve me tonight.”As a freeloading 'salted fish', she trembles in fear: “Your Highness, I'm still too young.”

Three Days of Happiness is a novel by Sugaru Miaki, also known as Fafoo. It’s a rewritten version of the story originally posted to 2ch.

The premise of the story revolves around a shop where one can sell away the remaining years of their life, and the consequences of doing so.

“I Say A Little Prayer” is a short related story which was posted along with the novel’s release. It spoils some things about the main story, but nothing major.