MTL - I Made Beast-taming Widespread Across The Globe - Chapter 49 prove? Why prove it?

There is a famous fairytale. A kindhearted girl whose father and stepmother got married and became a family of five with her two stepsisters. The poor girl who was condemned by her stepmother and stepsisters when her father died. The very fairytale, Cinderella.

Here, only those with spiritual roots can cultivate while those with mortal roots are destined to stay mortal.

Mo Wuji only has mortal roots, but will he only remain as a mortal?

- Description from Novelupdates

I used to think obsessive male leads were kind of hot. You know—the intense stares, the undying devotion, the way they’d burn the world for the woman they love? Swoon, right?Wrong.That fantasy went up in smoke the moment I woke up in the body of Sonia Mitford—the heroine of The Crimson Devotion, the first obsessive romance fantasy novel I ever read. The one that ended on a mysterious hiatus. The one with Marius Wittelsbach—a charming, possessive psychopath who thinks an ankle shackle is a love language.Now I’m trapped in a velvet-draped prison, shackled to a bedpost like some porcelain doll in a gothic fairytale. And Marius? He’s worse than I remembered. Sweet, soft-spoken... and utterly unhinged.“You don’t need to be afraid. I’ll take care of you.”Translation: I’ll murder anyone who blinks in your direction and serve you tea over their corpse.“Anyone who bothers you... anyone who looks at you the wrong way... I’ll get rid of them for you.”I thought I was playing the role just fine—smiling, nodding, pretending not to be horrified.But then—plot twist! Alessio Slovene, the forgettable side character, walks in looking like a golden retriever knight and drops this bomb: he’s actually the crown prince in disguise. And he’s investigating Marius.Finally—a lifeline. Maybe.Because people are vanishing. The body count is rising. And every time Marius kisses my forehead and calls me “Nia,” I feel one step closer to becoming the tragic heroine in a blood-soaked love story.Obsessive male leads aren’t dreamy.They’re terrifying.And I might be in way over my head.

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!