You were reincarnated into a fantasy world as the most powerful dragon. Your power is completely unmatched. This world has creatures such as Golems, Oni, Cyclops, Ogre, Leprechauns, Gnomes, Goblins, Fairies, Gorgon, Mermaid, Aqrabuamelu, Minotaur, Centaurs, Fauns, Werewolf, Griffins, Phoenixes, Basilisks, Demons, Unicorns, Vampires, Dragons, dragonkin, catfolk (nekomimis), elves, even goddesses, Heroes, and Demon lords exist.
The basic power hierarchy of this world. tier 5 being the weakest, and tier 1 being the most powerful.
Tier 5: Goblins, Fauns, Witches(new to magic), Gnomes, Leprechauns, Goblins,
Tier 4: Centaurs, Fairies, Dragons (Small), Mermaids.
Tier 3: Witches (experienced), Gorgon, Cyclops, Oni, elves.
Tier 2: Dragons (Medium), Griffins, Minotaur, Vampires, dragonkin, catfolk.
Tier 1: Dragons (Large), Demons, Unicorns.
Well, Goddesses have their own Tier. Since they created the multiverse.
There's an EXP system in this world. It works like this, every time you defeat or kill something you gain exp. Tier 5 usually has level 1-30 creatures. Tier 4 has level 41-99. Tier 3 has level 100-300. Tier 2 has level 301-999. Tier 1 has level 1000-10000, but it is rare to get to 10000. Goddesses are above the level system.