Magician of the Abyss – I was imprisoned as a traitor, but I obtained an immortal body and the strongest power to rise as an adventurer 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 www.mgeko.cc fastest updating comic site. The Summary is

A magician of justice will change the rotten world! Wim Abel, a court magician of the Cyrus Empire, is falsely accused of being a traitor by the upper echelons of the empire who fear his great power, and is trapped in a dungeon with a strong barrier that makes it impossible for him to escape. However, Wim, who has enough power to frighten an entire country, successfully escapes from the dungeon that was considered impossible to escape from. He aims for the Kingdom of Leoria, which is said to be a “complete meritocracy.” …On the other hand, speaking of the Cyrus Empire that banished Wim—-?