Honestly it suck, I've read 60ish raw chapter and can just say that author/MC is forcing too much on losing money that it downgrade all the good quality of it's story. I'm not against MC fully using it's system but I think the fact that he needs to "lose" money on his gf so that he can get x100 back is annoying. He doesn't seems to care much about her tbh, he "use" her as cash cow and she fell in love with his "kindness" as for him it's a pretty good deal 'cause she's beautiful, skillful, obedient and many more, anyway I don't rly feel any love from MC or it's not very well pronounced. Later he's just trying to make money (losing) and for that he needs to invest on his GF but her GF is so kind that she try to minimize the lose but he still try even though he gain money by doing business by investing on her. I'm honestly fed up by his greed or what's over. In the end it's a game of who can lose or minimize (and have profit) money. Anyway idea's all right, not very original but still could have been interesting but ended up bad with it's setting like it's system rebate or MC personality.