Kengan Omega is a Manga in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on kenganomegafree.com fastest updating comic site. The Summary is

Two years after the events of Kengan Ashura, a young man named Narushima Kouga aims to enter the Kengan matches, seeking Tokita Ouma for a yet unknown reason. He begins to work under Yamashita Kazuo when he meets Gaou Ryuuki, a spitting image of Ouma. As a massive showdown between the Kengan Association and Purgatory, another underground martial-arts fighting organization looms in the background, how will Kouga become strong enough to enter in the legendary Kengan fights?