Review Detail of king_of_Demons in The Bloodline System

I have read around 350 chapters .I was quite satisfied with the start and liked the development and system but everything went a little off when author decided to change the personality of Gustav with help of angy it was a little cringey for me at the start but it's not like I hated it I read more and more chapters and didn't mind author downplaying mc's speed I thought well maybe she deserves it but I couldn't wrap my head around these powerups given to her even more than anything else but I was patient wanted to continue ignoring whatever cringe was coming to mind but when author introduced how he could pass the bloodlines then I decided to drop it I already knew where this was going and I didn't like it one bit I read these novels because MC has something special in him that differentiates from the rest even if author had decided to help his teammates and specially his lover angy he could have done by making Gustav spent credits to aquire something that could improve their bloodline in the shop in bloodline item section but this is just rediculous all the time I spent reading and enjoying the novel came crashing down on me .I am left quite disappointed with the author when I honestly thought it would be one of the masterpieces that I have read till now especially with the no grammer mistake and writing skills of author but hey maybe it's just me that I don't like what author did and majority will disagree but this is my conclusion. p.s.-i read all the chapters till around 350 in a matter of 4 days it was very addictive especially with the writing skills of author so you can try understanding the disappointment I am feeling already never have I given a review for my opinion in novels but I took time to write this essay because of my hopes for the novel that were crushed . I don't know if author will ever see this or read this but hey atleast I threw Everything I wanted to say in the essay.