The Legendary Mechanic (WN) - Chapter 29 - Fall Out

The arrival of origin ability era. Many berserk beasts spawned. Humans with superpowers blooming like mushrooms. Su Hao is just an ordinary 3rd year high school student who had mastered a lowly grade origin ability named
“Model analysis”.

He was on his way to buy some beer to celebrate his acceptance as a civil servant when he was suddenly isekai’d by truck-kun.

When Su Jiu dies on her eighteenth birthday, she transmigrates into a novel about painful love and becomes an adorable four-year-old child.

Yu Shanshan, who has been tyrannical and lawless for 20 years, suffered retribution at the age of 21. She changed from a little ballet princess of 45 kg to a poor and fat one of 90 kg.. Apparently, eating was the most important thing in her life. Her success in losing weight was far away.

However, one day, the father of her child who had disappeared for four years came back. From then on, Yu Shanshan was forced to embark on a diet that was worse than death.

- Description from Novelupdates