It's quite rare to see a fantasy genre where there is a balance of male and female ratio. Despite of that reason, the story seems mid.
Am I the only seems kind of disappointed on how the chapter was "rushed"? I get the gist of it, but it's too fast of a progression.
My guess optimistic guess is that the sister wanted to collect all the skills she stole from plundering and give it to her brother. Since there's a mention that it'd be nice if the brother could have one of her skills. But meh who knows.
I really don't get why the mc pays a lot for useless skills when he could have offer the service of gimme your useless skills that you don't want and couldn't be removed, but you have to pay me for a price in exchange. But yeah that's the plot, its not like I could change it, so I'll go along with it.
6.5/10
This shows great potential, I hope the story shows more background of the MC's past.
He confessed, but mc you should have worded everything out properly (╯°Д °)╯╧╧