Hell’s Tormentor Kraken is a Manga/Manhwa/Manhua in english language, Fantasy 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

Controlling the Queendom of Sevek’s female prison with the Power of the Kraken! From the author of Akame ga Kill and Mato Seihei no Slave!