After Contracting the Demon Emperor, I Am Invincible!

Ye Ming traveled to a world where spirituality was awakened and a contract was made with a saint or witch to gain power. During the awakening ceremony, he unexpectedly chose the witch Ying Youyou, who was rejected by everyone, but he didn't know that she was actually the SSS-level God-falling Night Demon Emperor, whose strength far exceeded that of ordinary saints. Ye Ming was ridiculed and questioned, but relying on his experience as a killer in his previous life and Ying Youyou's powerful ability, he rose rapidly, swept across the secret realm, broke many records, joined the Dragon Kingdom's top killer organization, the Killing Hall, used his second-level body to defeat the fourth-level ferocious beasts, and powerfully won the top spot in the Cangnan City Martial Arts Examination, shocking everyone.