Projecting Myself Across All Realms at Once

(The System isn't the strongest cheat. The strongest cheat is yourself.) After transmigrating, Yun Qi gets a System that lets him spend money on draws... for a chance to obtain skills and items from the Myriad Worlds!! System: Hey, kid, want to spend some cash? It'll make you stronger! But one day, Yun Qi notices something strange... It seems all the skills and items he draws belong to another world's version of himself! By a twist of fate, the Yun Qis catch a glimpse of their powerful selves in other worlds, and see a whole row of golden thighs to cling to! Who needs to spend money when you can hitch a ride on someone else's coattails? P.S. This is an anime fanfiction!