My one million life
Before I begin my so called world, let me explain how the rules work for the MC who lived 999,999. With each life he lived, he had one issue, and that was keeping his family alive, getting revenge, and getting harems. With each life, he mastered each profession and career that ever existed and will continue to exist, like doctor, nurse, engineer, computer programmer, web developer, hacker, every single job you can think of, Leo has already done.