All of the series are different worlds/timelines so it doesn’t matter which series you start with. Really depends on what you like. I personally recommend Ancient Dreams first so you ease into his writing style. Here’s also a basic rundown of each of his series:
Ancient Dreams- Elves, dryads, demons. His first work so it’s a simple fantasy. It’s about an old deity/spirit MC who wakes up after years of being trapped in a necklace and finds the world changed. Gets involved with some kind of sinster plot that involves a brainwashed goddess, an elven princess, and a whole bunch of other cool side characters.
Through the Fire- MC is an elf but her entire village basically gets burned down and killed by a dragon. Her “crush” also get captured by said dragon while she herself basically loses her arm and her magic core. She vows to save the girl she loves but she has to get powerful enough to do so and that’s hard when ur legit a cripple.
Beesong Chronicles- BEEGIRLS. Forget about cat girls, beegirls are far superior. MC used to be a Bee but then becomes a beegirl because a god won a bet or something and all the bees got turned into demi-humans. Super funny, cute, and lovely. Still lots of action and is the only series of his where the MC doesn’t really end up with a harem of girls.
Lilith’s shadow- Sci-fi fantasy? Basically superheros and MC is the creation/daughter of a notorious supervillain. MC tries to steps out of the shadows of her creator’s past and find her own identity. Super cool alt-world building and lots of interesting female hero love interests.
Mantles of Power- Angels and Demons. MC is sort of a fallen angel who may or may not have accidentally landed into the arms of a demoness and then falls in love with her.
Dusk Gate- New series, but in the same universe of Through the Fire. MC is a cynical mage-elf that was imprisoned in some demon’s castle as a slave for a few centuries till some adventures accidentally free her. No development in romance yet but a few love interests on the horizon.
All of them have poly endings, except for Beesong Chronicles and all of them are really good, especially if you like fantasy.
Thanks a lot for the summaries!!! All of them look awesome, Through the Fire legit sounds like a mix between the plots of skyrim and dragon's dogma (videogames). I need to look into getting them for the weekend