Twenty Thousand Miles in the Sky

Heads-Up Guide: No female lead, no transmigration, no System. There is magic but no swords, and little boys but no fishnet stockings. The main story is written by an old-school otaku with a complicated mix of interests.

Introduction: A long, long time ago, humanity was born, and the civilization of the apes vanished. Eras changed and tides of time flowed on, but humanity remained atop the world, never falling from its throne.