What's wrong with this lawyer?! - Chapter 768

Kaito Nakamura, a shy university nerd, thought he’d found love when the stunning Aiko chose him as her boyfriend. Their sweet, fluffy romance fills his lonely world with hope—until he discovers she’s cheating on him with multiple guys, reveling in the taboo thrill of betraying someone so innocent. Heartbroken and humiliated as explicit photos of her circulate online, Kaito’s tears are interrupted by a mysterious popup: the “Revenge NTR System Beta.” Promising retribution but with a chilling condition — he can’t break up with her.Contains Ntr, read at your own risk

A young man who wanted nothing but love from others died while talking to a mysterious author of his favourite novel.However, that wasn't the end for him, as he reincarnates in a Xianxia world with a Wish Fulfillment system. He can wish for anything, and it will be fulfilled.Finally, getting a chance to make his dream come true, he decided to make his own Divine Harem Sect where he would have a whole sect to love him.Of course, that also includes other type of love........“Huh!? What do you mean my disciples destroyed your sect? That's impossible! Don't you see how cute and kind they are? They are harmless!”“Hmm? My disciple flattened the Hollow Mountains? Don't joke around. Can't you see her sleeping peacefully in my lap?”“My dear disciples, why are you all lowering your robes? Wait! Why are you taking my clothes off? Well, now I can't do anything about this.”

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!

- Description from Novelupdates

After the ‘100-Year War’ between the Necromancers and Priests, an all-time genius who’ll shake the power structure was born. “Am I a rare case or something? Do I have talent?” A potential beyond all imagination. He obtained his father’s undead army and entered the great Necromancer school of Kizen that divided the continent. Geniuses are geniuses, even when gathered among the elites. The research community was flipped on its head by the appearance of a new case. Professors wouldn’t leave him be alone, wanting to make him study directly under them. Officials from all over the kingdom and heads of organizations fidgeted over whether to scout him. “Professor! When can I make a Lich?” “Gimme a break. How talented are you? You’re crossing the line, honestly.” A genius among geniuses had appeared.