Full-Time Magister: Starting with a Lottery

[This is a nanny story, not a wish-fulfillment novel. It's frustrating; if you find it unpleasant, please try other good books.]
Lin Guangbei transmigrates to the world of Full-Time Magician. In this world where demons surround and magic reigns supreme, he starts by obtaining a lottery cheat he created in his previous life, and with it, he gradually rises to the top!
Years later, Archangel Michael was defeated by Lin Guangbei on the Holy City, shocking the world!
"Humanity does not need infighting. Our strength should be used to fight demons and to save our fellow human beings who are suffering from demons!"
P.S.: No harem/no protagonist abuse.

Novel keywords: Full-Time Magister: Starting from the Lottery (no pop-ups), Full-Time Magister: Starting from the Lottery (full text download), Full-Time Magister: Starting from the Lottery (latest chapter reading)