It's been too long since we've covered a CMX manga on here. They always had shojo fantasy series that were always interesting, even if they weren't always good.
THE LIZARD PRINCE (Tokage Oji), by Asuka Izumi. First published in 2003 and first published in North America in 2009.
PLOT:
Princess Canary is far from thrilled at the prospect of her engagement to Prince Heath of Gazania. Heath is a boorish, lazy jerk whose very nature offends the sensible, strong-willed Canary, and he in turn has no desire to get married to anyone. He decides to switch places with a talking lizard of his, unaware that said lizard is in fact his missing elder brother Sienna. Canary ends up falling for this gentler, thoughtful creature, but their true love makes the magic behind the enchantment go haywire. How do you make a royal relationship work when your fiance can turn into a lizard at any moment?
