[EpsilonX]

I was at Kinokuniya maybe a year ago, and they had a couple of Kamen Rider manga volumes on display. The art style looked a bit old school, but maybe like something modern designed to look older. The biggest thing that stood out to me is that there was a female character, in my mind it was Tackle but I might be wrong, and they drew her in a really revealing way with huge knockers. I think that was one of the back covers of the first 1-3 volumes. Anybody have any idea what this may have been? Based on what I've seen online, it seems like it could be Kamen Rider Spirits, but I can't be certain.