Over the course of its first twenty novels, Seirei Gensouki is an overpowered protagonist harem with an intermittent food subfocus that can be essentially broken down into two major arcs.
The first (books 1-15) establishes the protagonist’s early connections and concludes his revenge. There’s little to complain about in this stretch besides an apparent fondness for cliffhanger endings, and the author even shows some restraint in the love interest department by not having his cousin or half-sister fall for him. The second (books 16-20) is much shorter and concerns itself with both the protagonist’s and hero’s awakenings into higher beings.
Frankly the awakening and amnesia plotlines aren’t really doing anything for me and I’m uncertain whether or not I’ll ever read any further. While it’s a decent method to reduce the love interest count to a manageable number, it comes across as exceptionally arbitrary and I highly doubt the amnesia will stick.