MTL - Strong Waist - Chapter 129 most regrettable game

Reborn as a sword, he lived for hundreds of years, and then he occupied the body of a 15-year-old prince.

She, a modern hidden ghost leader of an organization which gathered insane prodigies proficient in the various differing skill-sets. Highly skilled in medicine and poison, executes covert assassinations, viewed as insane and demonic in the eyes of people of the world. Killed in an accident, and reborn into the body of a disfigured young girl.

What? Face disfigured, identity stolen? A return to the family dim and hopeless? Her identity can be given up, her family can be forgone, but as for the one who harmed her predecessor who inhabited this same body, if she didn’t at least make them scream in unimaginable agony and throw them into a state of wretchedness, how could she live up to her demonic reputation? Endless turmoil ensues and it’s a battle to dominate over all! See how she shook the world dressed in a suit of red, her sword up against the dominant powers that rocked the Heavens! Her name spread across the seas, shocking the earth!

- Description from Novelupdates

Silvermist Evermore never belonged. Born to unloving parents and cast aside, she had long accepted that life would never offer her warmth—until she was chosen as an apprentice at Moonstone Academy, a place where magic breathes and fate is written in the stars.But her arrival comes with a price. In an act of betrayal and manipulation, Silvermist shatters Frost's staff, the formidable Winter Guardian, unraveling a secret that should have remained buried.Now, bound by an ancient rule, she must take its place—not as a mere apprentice, but as something far more dangerous: Frost’s human staff, the living embodiment of his power.As Silvermist struggles to navigate the treacherous halls of Moonstone, she discovers that Guardians without apprentices are doomed to vanish, and the balance of the four seasons—Spring, Summer, Autumn, and Winter—hangs by a thread. But the shadows whisper a greater truth: a war looms on the horizon, fueled by the Sandman’s wrath and a hidden enemy who has been pulling the strings all along.Haunted by cryptic dreams, hunted by those who seek to use her, and betrayed by those she once trusted, Silvermist must uncover the truth behind her own existence before she loses herself to the very storm she was forced to wield.Can she survive the weight of Winter, or will she be the final snowfall that buries them all?

Junpei Takeda, a high school student, is childhood friends with Noriko Tatsumiya and is bullied by Kido Shouta. One day, while bullying Junpei, they (Junpei, Tatsumiya, & Shouta) were suddenly summoned to a different world by the whim of “God”. Summoned Heroes with cheats, or so he thought. But it turns out Junpei’s stats were even worse than an average farmer. Tricked into a deathly labyrinth by the only one he trust, he walks the journey for revenge.