Can't rember the storys name.

#1
The one I cant remembers the name of has the MC reincarnate as a dragon beast kin. It's a matriarchal society. They look human until transformed, they don't let the kids see that they can transform until they "awaken" at around 9 or so. The mc being born into the world is the signal that the enemy of the universe or something is descending on that world through portals, and one of the arcs had the mc having to board an airship to escape a monster hord with his family, but only him and his sisters  are able to make it off the ship after it crashes.
New Reply