Edo no Ryuugai

Edo no Ryuugai is a Manga/Manhwa/Manhua in english language, manga series, english chapters have been translated and you can read them here. You are reading chapters on the fastest updating comic site. The Summary is

Years after a dragon fell in Edo city... The city rebuilt itself alongside the dragon. When samurai from the Matsumichi domain heard that a cure for the plague existed within the dormant dragon's body, they ventured inside. There, they encountered a man tasked with managing and exploring the dragon...?