After Being Abandoned by My Family, I Became the Memory Devouring Demon Lord

Travel to a different world of swords and magic, and awaken the killing and devouring system. The assassin who killed me became my assassination teacher. The nobles who harmed me have their family secrets for me to read. Even the most prestigious magic academy, I can steal their deepest secrets. They called me a soul-stealing devil, but they didn't know that this world was a tampered memory. When the God of Memory sends down divine punishment, he wants to cleanse the entire continent. And in the memories I swallowed - there was also him...