In the Beginning, the Ancient Demon Saint Used Me as a Cauldron

In the Beginning, the Ancient Demon Saint Used Me as a Cauldron is a Manga/Manhwa/Manhua in (English/Raw) language, The first step of cultivation is to make a contract with a demonic familiar. He was untalented and unwanted series, english chapters have been translated and you can read them here. You are reading chapters on ManhwaZ fastest updating comic site. The Summary is

Action, Adventure, Comedy, Fantasy, Historical, Martial Arts, Mystery, Romance, Sci-Fi, Supernatural, Long Strip, Isekai, Full Color, Magical Girls, Demons, Magic, Ninja, Reincarnation, Time Travel, Villainess