Using entries to cultivate immortality in chaotic times - Chapter 31 "Isn’t the profession of talisman master way too profitable?

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

Doomsday crisis, zombies are attacking, the situation is critical.Don't let our enemies change from zombies coming at us to humans we protect behind us.“Brother, what would you do if I turned into an irredeemable zombie?”“…kill you.”“Then do you know what I would do if you turned into a zombie?”“Kill me.”“No,” he lifted her long hair, revealing her smooth neck.“You are crazy. I advise you to give up this irrational idea.”“Brother, this world has gone crazy.”

[WARNING R18+]In his previous life, the loser Li Long thanked God for giving him another chance to be reborn with his memories. And in an accident Li Long got a legacy left by a dual cultivator. So Li Long decided that from this life on, he would be good to himself and others, and vowed not to suppress the dark personality of his previous life. No matter if he was spit on by thousands of people or was not tolerated by the world, he would live only for himself in the future...

A cultivation story about how a declining sect is restored by a narcissist, a troublemaker, a meanie, an idiot, and a wimpy kid.

- Description from Novelupdates