MTL - Becoming Immortal Through Getting Married - Chapter 39 full scale war

IMPORTANT NOTE: Please be known that this book wouldn't have made it this far without the support my dear writing buddy Rachel E. Canton who is a great writer of SINS OF THE SERAPHIM - https://www.webnovel.com/book/sins-of-the-seraphim_26438336605116805 and Derek J. PernaTo Rachel & Derek, Thank you for everything!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~When the last heir of Ardel lost everything, fate would bring her to her rightful protector.Anna Adhemar, the forgotten princess, found herself betrayed by the Regent. Hunted by the Bargesians and the ruthless slave traders, she desperately fled for her life.Rescued by a mysterious man, her newfound safety was short-lived as she succumbed to a potent aphrodisiac. Then, she awoke in the arms of the fearsome Knight Commander of Gerhard, stripped bare, in a foreign kingdom.Fear, confusion, and a sense of profound devastation enveloped her.But the man before her declared, “I am your husband. I married you last night.”Then, with unwavering determination, he vowed, “ You're my woman now. No one can hurt my woman.”---Kyren Raychard, the Crown Prince who had chosen to forsake the throne and become celibate, led the Knights of Gerhard to safeguard his kingdom’s border from slave trading activities.Outside his camp, he found Anna poisoned and delirious. The healer informed him of the only cure, of which he must race against time to give and honour her.For the first time, he felt an overwhelming instinct to protect and claim her as his own.Unaware of his deepening affection, he belatedly realised his feelings as he stood on the brink of losing her.Bound by a soul-binding spell, their fates intertwined…

For unknown reasons, he finds himself transported to a parallel world's Japan, unexpectedly taking over the body of a soon-to-be high school student who had died accidentally. Surprisingly, he did not inherit any memories. However, the first challenge he faces upon arriving here is a language barrier...Just as he struggles to communicate with his new family, a heavenly voice arrives: the black technology system has been activated, and the initial item—translation konjac—has been distributed.This is the story of someone with above-average intelligence but almost no physical strength in the Classroom of the Supreme Power.

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

Having lived a normal life all his life and died without being able to fulfill his desire and when he’s given a task by a god, watch how he takes the protagonists girls while making it hard for the hero.