Man Eater 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

Shimada is a ruthless criminal responsible for indiscriminate mass murder, who later resorts to cannibalism. Nagumo, a police officer, is assigned to escort him, heightening the tension. But what unfolds inside the escort vehicle, packed with criminals, marks the beginning of an unimaginable terror—a new kind of immersive survival horror.