First of all what is the role of you on this project? According to the percent you have mention seems to me nothing but a ponzi or something like that. I have tried to understand its road map and clicked on roadmap but could not understand what it is referring.
From i read, it's just like staking on defi (you see the link he mentioned is like defi link). So we need to deposit and earn interest through our investment, just like on any defi site. But most of defi site need us to use crypto , not fiat money.