"Ow...my everything hurts. I think this sparring might've been a mistake," Groaned Celestia, wincing as she poked at a bruise on her arm.
"Uh, well...I made sure not to break anything, at least," I replied sheepishly.
"Easy for you to say, when you can regenerate. Damn it, I wish the Magic in this world was like the Magic in your world, where basically half the population were able to use Healing Magic. Or at least those Magic Item things you told me about, an object that heals you just by running Mana through it sounds so convenient," She sighed wistfully.
Yeah, Magic Items don't exist in this world. They do have barriers to detect and keep out Monsters from populated areas, those are made using Mana Crystals.
Mana Crystals are usually used by Adventurers to boost their Magic and physical abilities, pretty much all high quality gear and weapons are embedded with those crystals.