Hametsu no Oukoku  

The Kingdoms of Ruin, はめつのおうこく, 파멸의 왕국, Королевство руин, 破灭之国, Regatele Ruinei

For many centuries, humans thrived with magic, which was given to them by witches for their benefit. however, times have changed and now science has replaced both magic and witches. the redia empire is determined to eliminate all witches in order to free humanity from the curse of magic. adonis, who was just a boy when this happened, became an apprentice to a witch he loved deeply. when she died at the hands of the empire, adonis swore revenge. with his immense power, he will bring about bloodshed!

Hametsu no Oukoku has been published in English as The Kingdoms of Ruin by Seven Seas Entertainment since December 1, 2020.