After My Boyfriend Cheated on My Sister, I Was Ranked Among the Top Gamers.

My boyfriend cheated on me and hooked up with my sister, defrauded me of money and then killed me. In my next life, my sister kissed my boyfriend at the engagement party. And I chose the otaku that my sister disdained. They don't know. The otaku that everyone looked down upon became the world's richest man by creating Black Goku! I immediately invested all my wealth in it. How could I be as successful as relying on a man? This time I also want to taste what it's like to be a rich man.