Originally, the protagonist was just an ordinary office worker who encountered a supernatural incident on his way to get off work. He was reborn and traveled to a magical world where humans and dragons coexisted, and became a dragon.
In order to quickly understand the world, I studied sleeplessly and even begged humans. As a tall dragon, it's a bit too cheap.
Alas, there is no other way. In order to survive, you must know some basic knowledge of this world, so the protagonist whose soul is a human and whose body is a dragon begins a journey to a different world.