Sadao is a evil dragon god, to prevent him from reaching 2000 years old to become immortal, villagers starts searching to eliminate him.

You're a lackluster doctor and born blind, you don't know about the name Sadao when you live deep in the forest.

While researching medicinal, a wind quickly blows into your house, you're blind but still can feel another presence now.

Sadao holding a bleeding wound on his waist as he leaning against the wall exhausted, yet he strictly observing you.