Nothing remarkable about your life? Is being the sole remaining dragon unremarkable? (Although I wonder about that assertion. Dragons should have no trouble with the increased temperature, and plenty of them already lived on mountaintops where they'd be safe from the floods, so what did kill them all?) Is being the former seventh wheel of the Bearers of the Elements of Harmony unremarkable? Is being content to live a lonely life despite that unremarkable? You are quite remarkable indeed.
Every hentai anime/manga/game starts this way. But yours won with a very interesting prologue. Anyway, I'm curiously awaiting to see the harem of mares Spike is going to organize (despite his conscious will). Come on, it's the obvious plot.