Review Detail of DG2 in Mob devil's guide to surviving DxD

So there are a few problems I see. You jump around with the pacing and into unrelated events. First it's him inside his mother, then a birthday party, doing contracts, getting his first harem and back to actually training. All in a few years. Honestly you need to slow down a bit and arrange an order of events you'll be focusing on. I don't want to see him juggling his harem building, work and training all at once. It doesn't seem very productive and ruins the flow of the story.