Open the Sky Lock with One Stroke

A thirteen-year-old boy who was reincarnated was shot across the galaxy by the enemy in his first life. By accident, his soul completely merged with a heavenly lock and awakened his eightieth reincarnation memory... But when the boy used his eightieth reincarnation memory to deduce a new skill, he unintentionally received the blessing of countless powerful soul fragments from the era, and constructed a unique ancient skill book. However, the first thing this ancient skill book did when it came out was to block the boy's eighty reincarnation memory...