[No harem splitting. All the love interests are pure in body and mind, and there will be no suggestive interactions between them.]
Yu Ning was beautiful and delicate. After dying of illness, he was bound to a Dragon-Awesome System that could not be disabled.
[To be a qualified Dragon-Awesome protagonist,]
[you must not fear pain or exhaustion, be able to take a beating, dare to jump off cliffs, stand on your own two feet, and bleed without shedding tears.]
[When Heaven is about to place a great responsibility on someone, it first tests their resolve, exhausts their muscles and bones, and starves their body.]
The System looked at the delicate little beauty in front of it and said with disdain:
[Most importantly:]
[No being delicate.]
Yu Ning blinked guiltily. "O-okay."
Later on,
with help from the men who were originally supposed to beat, scold, and humiliate him, Yu Ning, who was delicate and afraid of hardship, exhaustion, and pain, quickly became a god.
Holding the "Best Dragon-Awesome Protagonist" medal, he asked in confusion, "Is this how it's supposed to work?"
The System: [...]
[The Dragon King Son-in-Law]
[You marry into the Tang family, and your entire future wife's family looks down on you.
Your wife slaps you, your brother-in-law calls you a useless nobody, and your father-in-law humiliates you by making you wash his feet every day.
For three whole years, you must put up with every beating and insult as they trample on your dignity.
Only then can you reclaim your place as the Dragon King.]
Yu Ning waited in fear and trepidation to be beaten and bullied.
Instead, his wife became a husband, who grabbed his hand and slapped his own face with it.
His brother-in-law told him, "My sister is the useless one. Be with me instead."
Every night, his father-in-law would bring over a basin of hot water and hold Yu Ning's feet, his gaze dark...
[The Protagonist Who Breaks Off the Engagement]
[Your entire family is slaughtered, and everyone betrays you.
Your delicate fiancée lies against your sworn enemy's chest and tells you, "I'm sorry. I don't love you."
Her family calls you useless and says you're not worthy of her.
Your sworn enemy holds your fiancée and smugly tells you he'll spare you if you lick his shoes clean.
Even your brother betrays you and steals your spiritual root.]
Yu Ning waited in dread to be scolded and humiliated.
Instead, his fiancée became a fiancé who climbed into bed with him every night and said, "Baby, give me a kiss."
His fiancé's father told him, "Only I can give you the best."
His sworn enemy was always catching him and kissing him fiercely.
His brother searched everywhere for treasures to give him.
Beautiful, pampered bottom; romantic rivalry; taming story.
As usual:
[Delicate, beautiful, and physically weak bottom]
[Everyone's favorite + doted on by all]
[The most beautiful person in the story]
[No harem splitting; every world has more than one love interest]
[Pure in body and mind, virtuous male love interests]
[An arrogant, cruel dog who looks down on others becomes a possessive mad dog, then a lovesick dog who pampers and worships his wife]
The title and blurb may be revised later.
Theme: Treasure life and strive to survive.