The True System master (real reason lazy)

theses is just me doing a self insert/wish fulfillment and the thing I would do if I was given a chance like theses. I'm not the best write so, you can make some suggest in the comments and thing you want me to rework/chancre. TAG-self crated skills/abilities, Smart-mc, dumb-mc, unique cultivation, pill making , multiverse-things, evolution , harem (maybe, idk), self crated class/jobs. (I will try to do the multiverse traveling but don't get your hopes up I'm not well the best at writing so don't be to mad if I fuck somethings up)