The Dread Knight's Rage - Chapter 39: Blood Demon Knight

A mecha otaku is reincarnated into another world as Ernesti Echevalier (Eru). In this world there exist huge humanoid weapons known as Silhouette Knight. Dreaming of piloting those robots, Eru, with childhood friends, Archid Walter and Adeltrud Walter: together they will aim to become a Knight Runner, pilot of Silhoutte Knight.

In Ten Heavens Domain, full of respected powerhouses, juvenile Ling Tian accidentally obtained a mysterious iron sword. He refined the Supreme Martial Dao, studied the Divine Spirit Array Laws, fought Ten Thousand proud and arrogant Heavenly Clans, and was undefeated! Seven Feet Sword Tip sweeps away the world, within the Ten Heavens, I am the Supreme God Monarch!

- Description from Novelupdates

Everything was going on well until the night before her wedding, Lin Shuyin’s fairytale life suddenly crumbled from her fiancé's call, dragging her to reality...Her fiancé abandons her for her stepsister, her father and stepmother escape, abandoning her to fend off the reporters and media, and by morning, she’s framed for her grandmother’s murder. Thrown into a cruel underground prison, she dies beaten and broken.But death is only the beginning.An ancient soul awakens within her, a woman who spent a century trapped in a lab, experimented on, and injected with beast blood. When her soul awakens, the weak and naive Shuyin is gone. In her place rises someone colder, sharper… unstoppable.Then comes Lu Yuze, her ex-fiancé’s uncle, a man wrapped in secrets and power. He saves her from the abyss, but not for free. His price? Her blood, and her bone marrow… to save his dying daughter. The only thing Lu Shuyin wanted was revenge, and asked for a contract marriage, and money, these were the most important things to survive out there...In a world where betrayal runs deep, love becomes the most dangerous experiment of all.She’s no longer the victim.She’s the revenge they never saw coming.

Back in 1991, in the face of this golden age, Chen Jianghai swears that he will only live in three words in this life: Lin Wanqiu! The story of a reborn person who built an electrical empire and reached the pinnacle of his life!

- Description from novelbuddy