He's a good technical writer, but he has an obsession with harems that unfortunately a lot of writers have these days. I blame the shift in harem animes protagonists being indecisive about relationships to being full on harem hunters.
Edit: Hm. I just read it, and I have mixed feelings on it. On the one hand, how he writes Ranma and Asia is something new and original and something I've yet to see in a dxd story. There's also the token listed Rias pairing, which I can see several ways the story could go progress to make that happen.
On the other hand, he randomly threw in Saeko from High School of the Dead and the other person in his listed pairing is fucking Gabriel. If you aren't familiar with how DxD works, angels 'fall' by lusting after humans, and the only mentioned way for them to even be intimate with a person involves a lengthy ritual that would need to be performed pre sex each time (like multiple hours) and there could be no possessive feelings whatsoever between the two angels screwin- I say angel there, because it's pretty much impossible for a human to love someone and not feel any sort of possessive feeling over them.
The story has potential, but he needs to write out Saeko, and he needs to replot out how Gabriel is involved, if at all. Otherwise, having Saffron be a member of the Phenex clan who Ranma has just defeated is workable. Then because reasons (dumb ones here, heading off elsewhere to find a cure cuz akane is being bitchy for no real reason) he meets Asia and ends up rescuing her from the Fallen Angels after her right after she gets excommunicated and brings her back to Japan after 'adopting' her as his little sister/guarding her from the angels is something I haven't seen before, and I can easily see how this could lead him right smack into the Kuoh peerage groups.
Given his past history though, chances are he won't change his bizarre harem matchup and the story will suffer severely because of it.