At the Beginning, He Used Me as a Shield and Slapped Me Away!

The rich man on earth donated all his wealth before his death, and made a vow that if he could go back to his old life, he would never be a shield or a good person again. His wish was fulfilled by a mysterious system, which allowed his soul to travel to another universe. When he started, he encountered Green Tea as a shield, so he refused Green Tea and started with me.